As soon as you take an interest in organization or productivity systems, it is hard to avoid advice about managing “incoming flows.” But what exactly are we talking about? Emails, messaging apps, social networks… Anything that can, in one way or another, generate tasks for you. I bet that simply mentioning these different channels makes you shudder and that you are already thinking about your 3,000 unread emails, your family WhatsApp group with the thirty photos of your aunt Yvonne’s hydrangeas, and the registered letter you have been putting off collecting for a week. Am I wrong?

Even so, consistent discipline over time makes it possible to manage all of this effectively and without stress, simply at the cost of a little rigor.

To keep this article simple, I will use the term inboxes, and explain how I manage them day to day.

Why you often need to start here

Although I have already done so briefly, let us begin by defining more precisely what we mean by an inbox.

I will try to be as general as possible without becoming vague. Here is a simple and concise definition of what I consider an inbox: it is an external signal, which may come from a person or a digital service, but which, above all, requires action from you. That is quite broad, but deliberately so, and I am going to explain why.

Before you continue reading this article, I am going to ask you to make a small effort. Take two minutes and try to list for yourself everything that might count as an inbox for you. The exercise will probably seem a little trivial at first, since you will obviously come up with the usual suspects (we will get to those in a second), but make the effort to think about less conventional things that might, for example, have required action from you over the past ten days. Really take the time, write it down on a piece of paper or in a note-taking app, then continue.

Done? Were you able to make that list? Keep it close; you will need it again soon.

I have tried to list the most obvious ones: those that I consider inboxes, but also those that do not necessarily apply to me personally and that often come up among the people I train. I have split them into two categories.

Digital inboxes

  • Of course, you probably thought first of email, whether professional or personal. We will return to it in detail in a later section.
  • There is a good chance you listed several instant messaging apps: the usual WhatsApp, Signal, Telegram, Messenger, SMS, Discord, LinkedIn in a professional context… It is obviously impossible to make an exhaustive list, but they generally work in fairly similar ways.
  • Phone calls and voicemail: we tend to use them less and less, and they are now just one feature among many on our smartphones, but they still matter.
  • Push notifications, especially on smartphones but also on computers: these are a special case, because some are merely a reflection of one of the inboxes above, such as an email or a message, while others stand on their own. For example, you might receive a notification from your home automation system telling you that your connected shutters are not working, or a heavy-traffic alert from Waze that could affect your travel time as you leave for a family weekend. We will return to this question in more detail below.
  • A simple post in a social “feed” such as Instagram, TikTok, or LinkedIn: even though we tend to consume these feeds passively, myself included, they can give you an idea. An article to read, a product you like, a person to contact, a job to apply for…
  • Files left lying around on your computer or smartphone, typically in a downloads folder, or a screenshot.

Physical inboxes

  • Mail: yes, we still receive it. Fortunately for the planet, less than before, though not necessarily with good news when it does arrive: fines, taxes, an unpleasant note from a neighbor…
  • We can also include packages and deliveries of any kind, which fit into the previous category.
  • The famous sticky note on the fridge, or on your desk, left by your partner or a colleague, saying something like “remember to buy chicken breasts for tonight” or “schedule a meeting at 3 p.m. to discuss project ABC.” We can add any other kind of analog note, such as a basket of loose items in your hallway or living room.

The problem this creates

You probably thought of more inboxes that apply to you than I included in the list above, and that is perfectly normal. Keep them in mind; you will need them later. What matters is understanding the central idea: lots of inboxes, lots of calls to action, and above all, lots of unstructured things. You could easily receive the same call to action through three different inboxes: for example, an automated email, a phone call from your partner, and an SMS reminding you to book a dentist appointment, even though you are already well aware of it because that good old cavity keeps you in pain day and night. At the same time, you may have missed a quiet LinkedIn notification in which a recruiter mentions you in a post that could help you apply for your dream job. Are you starting to see the idea?

Push notifications do not make things any better: almost every app on iOS or Android seems to take great pleasure in bombarding you with alerts about anything and everything, often without giving you enough control to configure them intelligently. My vacuum cleaner app, excellent though it is, regularly sends me promotions for other products in the range, as though I needed them.

When it comes specifically to “human” inboxes, meaning messaging apps and email, the absence of a management system—which we will get to—has an extremely dangerous side effect: people who use these inboxes as a todo list tend to let their loudest, often borderline aggressive, contacts dominate them. This is especially true in a professional setting, where a simple email exchange started by an influential person or an important client can send everyone into a panic simply because someone shouted louder than everybody else. A long time ago, I read a line on a blog or in a book saying that “your email is other people’s todo list,” and I love it because it captures this point perfectly. Of course, that does not mean you should ignore your inboxes entirely. If a request is urgent, you need to deal with it quickly. But you should not rely solely on other people to dictate your tasks.

Finally, let us look at the specific problems created by feed-based inboxes such as social networks, which come with dangers of their own. The addiction and intellectual decline these feeds can cause have been widely documented and discussed, and like everyone else, I have found myself scrolling through TikTok like a zombie for forty-five minutes. Without going any further into the addictive side, which is not really the topic here, let us focus on what this means in terms of tasks: you might see a LinkedIn post sharing an interesting article you would like to read, or a YouTube video about a film screening the next evening at the cinema near you.

A few decades ago, there were fewer inboxes and they followed fairly clear conventions. Mail arrived once a day, and a registered letter explicitly signaled that an important action awaited you. The telephone, meanwhile, imposed a form of synchronicity: either you answered, or the person called back or left a message. These channels could already be intrusive, but there were few of them and their rhythm remained relatively easy to understand. Today, demands are constant, fragmented, and often designed to claim your attention without letting you immediately gauge their importance.

Eventually, the idea will of course be to centralize all of this in a structured system. But the first step is to rationalize how you check these inboxes every day. That is exactly why we start here, because this is where everything begins: your organization system itself may be excellent, but if you do not control what goes in, what comes out cannot be satisfactory. It is the principle of “garbage in, garbage out.”

Messaging apps

The first principle is probably the easiest to understand, though not necessarily the easiest to put into practice: simply reduce, or even eliminate, some messaging apps. I recommend using one primary messaging app whenever possible. Personally, I try to use WhatsApp for my private conversations and not worry too much about Messenger, Google Messages (SMS), or Telegram, even though I do have accounts there. Of course, you cannot force people, and the idea is not to fall out with all your friends, but centralization will save you time and reduce your mental load.

The second point follows from the first: how often you check each app. I consider WhatsApp my primary messaging app, so I check it very regularly, unlike the others, which I look at once or twice a day. There is no truly universal rule here, just common sense and adaptation to your circumstances. In my experience, I manage to be very responsive on WhatsApp most of the time, and the people close to me generally know that they can reach me there.

The logical consequence of the previous point is notifications. My advice here is simple: a push notification is justified only when a message is addressed directly to you on your primary messaging app. I recommend turning off every other notification, unless you have managed to redirect incoming flows to your main app very effectively and know that the secondary channel is not a dumping ground. For example, many notifications from third-party tools, such as Amazon deliveries, banking services, and two-factor authentication, arrive by SMS rather than WhatsApp, so I keep notifications enabled for that channel. On the other hand, even though I use LinkedIn and it is an important professional channel for me, I have no message notifications enabled. I trust myself to check LinkedIn messaging often enough to reply to my contacts within a reasonable time.

The general idea is then to bring each messaging app to “inbox zero,” a term you have probably heard if you are interested in productivity. Almost every tool on the market lets you archive conversations without deleting them, while keeping them easy to find. If you are no longer waiting for anything from a conversation, you can archive it. If it is simply a discussion with one or more people, you can do so at the end of the day. But if it generates an action or a full project, I clearly rephrase what needs to be done and move the task into the Kanban, which we will return to in another article.

You do not need to be as rigorous here as you do with email, as we will see below. Personally, I do not necessarily archive conversations as I go. I simply try to reach inbox zero on WhatsApp and the other channels by the end of the day.

It is worth noting that a few tools, such as Beeper, let you synchronize many of your messaging services in a single interface. In my experience, Beeper was quite pleasant to use and, despite a few minor bugs that were not really its fault, the idea was very good.

Most messaging apps have some concept of groups: that is where you will find your family group, your work group, your sports club group… Again, there is no absolute rule, and it depends on how active the group is, but I generally think you should not hesitate to mute the conversation, meaning it still returns to your recent conversations without triggering a notification, or even enable notifications only when someone mentions you.

As for social media feeds, I think I could write a whole article about the subject, especially their excesses. My recommendation is ultimately quite simple: I am not a zealot who wants to ban this kind of feed entirely—you are adults, you can do what you like—and I do not think there is anything wrong with getting lost in one occasionally, in reasonable doses. Whatever can be said about their “predatory” nature, social networks remain prime platforms for promoting content in many categories, and you can still discover interesting things there. Beyond consuming them in moderation, I have only two recommendations:

  • Turn off their notifications. An app that you choose to open from time to time has no reason to keep reminding you that it exists. In this particular case, the notification is almost always counterproductive: it turns a deliberate choice to check the app into an interruption.
  • Set up some kind of favorites or read-later system. If a post makes you want to read an article, watch a video, or discover a product, save it somewhere dedicated, such as Instapaper. You can then return to that content when you choose, instead of immediately abandoning whatever you were doing.

It is harder to classify everything else—the “passive” inboxes such as loose files, sticky notes, and so on—because they are inherently tied to your environment.

The specific case of email

We have saved the best for last: it is impossible to discuss inbox management without addressing email. In both professional and personal contexts, I think it is the source of stress for the greatest number of people. Email is one of the oldest digital inboxes, but its uses have accumulated over time: conversations, newsletters, order confirmations, security alerts, social network notifications, project management tools, and marketing messages all arrive in the same place.

Separating professional and personal life is not always enough, either. You may have several work addresses, an inbox connected to an association, an address reserved for administrative matters, or an old address that some contacts still use. Each additional context becomes another inbox to monitor. The goal is not necessarily to merge everything, which may be impossible or undesirable, but to know which inboxes exist, what they are for, and how often they deserve to be checked.

My ideal rule is simple: as much as possible, the primary inbox should contain messages written by people. Those are generally the messages that require careful reading, a decision, or a reply. Anything generated automatically should be filed separately whenever possible. You will never achieve a perfect separation, but every category removed from the main inbox makes the signal easier to read.

Separate newsletters and automated notifications

I have nothing against newsletters. Some are excellent, and I subscribe to several myself. But they should not be mixed with messages that require action. Create a dedicated folder or label, then add an automatic rule that sends them there. You can check that folder periodically, when you actually have time to read. A newsletter obviously does not justify a push notification.

The same reasoning applies to emails sent by external services: social networks, Notion, Jira, banking tools, delivery platforms, or other software. Receiving these alerts by email can be useful if it saves you from logging into every tool simply to check whether something has happened. In that case, email is doing its job as a central hub. But these messages should also go into a separate folder unless they signal a genuine emergency. Otherwise, you have technically centralized the flows but merely moved the noise into your main inbox.

Modern tools already provide automatic categorization. Gmail, for example, distinguishes important messages, promotions, and notifications, and does a fairly good job overall. These categories do not replace a few rules tailored to your situation, but they are a very good starting point if your inbox is currently completely overwhelmed. It is better to begin with imperfect but useful categorization than to spend hours designing the ideal filtering system.

The case of emails where you are copied

One fairly little-known trick can save a significant share of your attention: create a rule for emails on which you are copied, or more broadly those for which you are not the primary recipient, depending on what your email provider supports.

Being copied often means someone simply wants to keep you informed. It does not guarantee that no action will ever be required from you, but the priority is generally not the same as when someone writes to you directly. You can therefore automatically file these messages in a dedicated folder, to be checked regularly but without an immediate interruption. In some organizations where the CC field is used with no restraint whatsoever, this rule alone can considerably reduce the noise in the main inbox.

Obviously, adapt this filter to your circumstances. If your team or a client routinely uses CC to assign actions, start cautiously and check the folder frequently. The point is not to miss important requests, but to distinguish what directly demands your attention from what is mainly informational.

Process email in batches

As much as possible, I recommend processing email in batches rather than reacting to each new arrival. Opening your inbox, reading a message, returning to your work, receiving an alert, then starting again a few minutes later needlessly fragments your attention. A dedicated time slot, on the other hand, lets you go through the messages, reply to those that require it, archive the others, and turn more substantial requests into tasks in your system.

There is no optimal number of times to check your email each day. One or two sessions a day may be enough in some jobs, while other contexts demand greater responsiveness. If email is an essential operational channel in your work, it would be absurd to impose a rigid rule on yourself simply to reach some productivity ideal. What matters is choosing, as much as possible, when you check your inbox instead of letting each new message choose for you.

And if you occasionally open your email outside the planned time slots, there is no reason to feel guilty. Batch processing is a tool for reducing interruptions, not a discipline designed to add stress. Find a sustainable frequency, then adjust it according to your responsibilities and the explicit expectations of the people you deal with.

Should you keep email notifications?

By default, I recommend turning off email notifications. The vast majority of messages can wait until the next batch, and an alert for every newsletter, automated confirmation, or conversation on which you are copied defeats the entire purpose of the sorting described above.

There is, however, one potentially useful exception: so-called “smart” notifications, particularly Gmail’s, which try to alert you only to messages considered important. They generally work well enough to offer a compromise in situations where you need to remain reachable by email. As always, you need to test the setting against your own flow: if these alerts still interrupt you for promotions or secondary messages, turn them off. A notification is useful only if it helps you act in time on something that genuinely deserves your attention.

Bonus: the digital inbox counter

I will finish with a system I use personally. It is entirely optional, but it gives me a little more control over my habits: a counter that tracks how often I check my digital inboxes.

On my computer, I keep a list of the main inboxes I need to check. Each item lets me open the relevant service in a new tab: email, secondary messaging apps, professional social networks, or other tools that receive incoming demands. Every time I open one, its counter increases. This lets me see how many times I have checked each channel during the day without installing a complex monitoring system.

The counters reset to zero each day. The goal is not to meet a perfect quota, but to make visible a behavior that can easily go unnoticed. If I discover that I have opened a secondary messaging app fifteen times when once or twice would have been enough, I have concrete information that I can use to adjust my habits. You can set yourself a rough limit for certain channels if you like, but I advise against turning it into another source of guilt.

This system works best on a computer, where inboxes can be opened from a common starting point. On mobile, the simplest alternative is to use the statistics provided by iOS or Android. They generally measure the time spent in each app rather than the number of times it was opened, but they already give you a good idea of how much space messaging apps, email, and social networks occupy.

I will return to this in a dedicated article, but in my opinion, mobile is not the best environment for building a productivity system anyway. It remains very useful for capturing information, replying quickly, or checking an inbox while you are out. For properly organizing, sorting, and processing incoming flows, a computer generally offers a much more suitable environment.