1. How to find your most productive hours
Productivity isn't about how many hours you work — it's about which hours. The same report written at 11:00 on Tuesday and at 16:30 on Wednesday costs a different amount of energy and comes out at a different quality.
Finding your own schedule is simple and needs no app at all:
- For one week, write down your energy level every hour on a scale of 1 to 10. One number, nothing else.
- At the end of the week, look for where the eights and nines repeat.
- That's your golden window. Most people peak at 10:00–12:00 and have a second, weaker peak at 16:00–18:00.
From there the logic is simple: the most important work goes in the peak, routine (email, invoices, calls) goes in the dip. The most common mistake is spending the morning peak clearing your inbox and leaving the hard thing for "after lunch", when the resource is already gone.
2. Time blocking
Time blocking means splitting the day into 60–90 minute blocks and giving each block to a single task. Not to a list of tasks — to one.
What a day looks like:
| Time | Block | Why there |
|---|---|---|
| 9:00–10:30 | Deep work on the main task | Energy peak, nobody is messaging yet |
| 10:30–11:00 | Email and messages | One block instead of checking every ten minutes |
| 11:00–12:30 | Second deep work block | While the peak is still on |
| 14:00–15:00 | Calls and meetings | In the afternoon dip, talking is easier than analysing |
| 16:00–16:30 | All the small stuff together | Parkinson's law: a capped block stops it stretching |
What produces the effect isn't the schedule itself but the drop in switching: estimates vary, but the reduction in task switching reaches 40%, and quality of work rises with it. When one hour belongs to one job, your brain stops spending resources on the question "what should I be doing right now".
One important detail: don't plan more than 60% of your time. The rest is buffer. A day booked to 100% falls apart at the first unplanned phone call, and from then on what's running your day is guilt, not a plan.
How to do this in FLOW
On the Day timeline page, tasks lay out across the hours — drag a block's edge to change its length, and a red line shows where you are right now. The planned date and the deadline are stored separately, so moving a block doesn't break the due date.
3. How to get into deep work
Deep work is the state where a task takes all of your attention and time stops registering. You can't force your way into it with willpower, but you can remove everything that blocks it:
- Turn notifications off — not "do not disturb", actually off.
- Close the extra tabs. Every open tab is a postponed decision.
- Put the phone face down, or better, in another room.
Then the first-five-minutes rule does the work: just start and don't stop for five minutes. After that the brain slides into flow by itself — entering costs effort, staying there doesn't.
The optimal block length is 90 minutes. That's roughly one natural cycle of attention; past it, concentration drops regardless of how much you want to continue.
4. The two-minute rule
If a task takes less than two minutes, do it right away — don't write it down and don't put it off. The rule belongs to David Allen, author of GTD (Getting Things Done).
The point isn't saving two minutes. It's that every small thing you write down keeps costing attention afterwards: you have to enter it, see it in the list, move it, tick it off. Twenty such items eat an hour of "managing the list" — working on the list instead of working.
Put on the list what you can't do now. Everything else — do now.
5. Hard tasks first or easy ones
Hard ones. The method is called Eat the Frog: take the hardest task while you still have the most energy.
The mechanism behind it is simple. Willpower is a finite resource, spent on every decision across the day, and by evening there's almost none of it left. That's why "I'll do it tonight" usually means "I won't do it".
There's a side effect too: the hardest job, closed in the morning, creates momentum — the rest of the day runs easier because the worst is already behind you.
6. Why multitasking doesn't work
Multitasking, as we imagine it, doesn't exist. The brain doesn't run two jobs in parallel — it switches quickly between them, and every switch costs resources. Stanford research measured a drop in productivity of around 40%.
Getting your concentration back after an interruption takes up to 20 minutes. Which means three "quick" email checks inside an hour of deep work mean there was no deep work at all.
The practical conclusion: one task at a time gives better quality and less fatigue for the same hours.
7. The Pomodoro technique
The scheme: 25 minutes of work → 5 minutes of break → repeat. Every four cycles, take a long break of 15–30 minutes.
On the break it matters that you actually change state: stand up, walk, drink water, look into the distance (it releases the strain in your eyes). A break spent on your phone doesn't count as a break — attention didn't rest.
Pomodoro works best not on the tasks you enjoy but on the ones you don't feel like starting: 25 minutes is too short to be frightening and long enough to move the thing forward.
For deep work, 25 minutes is often too short — blocks of 90 minutes serve better there. Pomodoro is a tool for starting; time blocking is a tool for going deep.
8. How to stop procrastinating
Procrastination is a problem of emotions — not of time, and not of character. We put things off not because we're short on hours but because the task triggers something unpleasant: fear of getting it wrong, boredom, or uncertainty.
Most often it's uncertainty — it isn't clear where to begin. In that case the cure is:
- Shrink the step until it's obvious. Not "write the report" but "open the spreadsheet and fill in the dates". The step should be small enough that "how do I do this" never comes up.
- Break the big task into 15-minute stretches and agree with yourself to do only the first.
- The 5-4-3-2-1 rule: count down from five out loud and start on one. It sounds odd, but it works — the countdown doesn't give your brain time to find a reason to delay.
- Clear distractions BEFORE you begin, not once you've sat down. Otherwise each of them becomes a legitimate excuse to stop.
How to do this in FLOW
When the thought arrives, press the microphone and say it out loud — the task lands on the board before you forget it. The home screen shows only what's overdue and what's due today, so the list never frightens you with its size.
And in the Tips tab you can put the same questions to the built-in AI and get an answer for your own situation.
Quick answers
How many tasks can I realistically plan for one day?
Three — and only one of them big. We systematically underestimate how long things take, by 1.5–2×; it's called the planning fallacy. A list of 15 items demotivates you before the day has even started.
Time blocking or Pomodoro — which should I pick?
Pomodoro to start something you don't want to start. Time blocking to protect a large piece of the day for one job. They don't compete: inside a 90-minute block you can work in pomodoros.
Is it true that a habit forms in 21 days?
No, that's a myth from a misquoted book. In the research, the average time to make a habit stick is about 66 days, and it varies widely between actions.
What do I do if the day fell apart by 10 a.m.?
Don't replan the whole day from scratch — that eats another hour. Pick the one thing that moves the situation most and do only that. The "never miss twice" rule applies to days as well.
Try it in practice
FLOW is a free task planner with a day timeline and voice capture. No sign-up, no ads.
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