August 21, 2026
Hi Everyone,
Most weekly planning advice points to Sunday evening. The week is over, the next one hasn't started, and the timing feels natural.
But the strongest planning routines we found while researching this issue skip Sunday entirely. The planning happens on Friday, before the weekend starts.
Here's why the timing matters more than the method, plus a 90-minute Friday session you can run today.
Why the timing matters
Your brain keeps working on unfinished tasks whether you want it to or not. Psychologists call these open loops, and they're the reason work follows you into the weekend.
A 2023 field experiment tested what happens when you close those loops on purpose. Researchers at the Universities of Graz and Vienna asked 208 employees to run a short weekly planning routine. They set goals, planned the steps, and thought through obstacles.
Over several months, the employees who planned weekly:
- Finished more of their tasks
- Spent less time thinking about work outside working hours
- Adapted better when the week changed on them
The routine made people stop carrying an unplanned week around in their heads.
A Sunday session closes those loops one day too late. You've already spent the whole weekend with the open week in the back of your mind.
What the Friday planners do
Alex Louisy, CEO of the fintech company Upflow, used to stack his Fridays with meetings and head into every weekend with a full inbox and a long list of unfinished tasks.
Now he blocks a two-hour "cool down" every Friday. He clears his inbox, wraps up urgent tasks, and readjusts his priorities. He says he closes the week with more clarity and starts the next one "with less baggage."
Shreyas Doshi, formerly a product leader at Stripe, goes one step further. He plans his entire next week on Friday evening so he can "go into the weekend with a clear mind."
He also has a simple test for whether a planning session was real:
"Your to-do list is the ideal Sunday evening theory. Your calendar is the brutal Monday to Friday practice."
A planning session that doesn't change your calendar hasn't changed your week. The list records your intentions, but the calendar decides what happens.
The 90-minute Friday session
Block 60 to 90 minutes on Friday afternoon and protect it like a client meeting.
Close the loops: Clear your inbox as far as you can, and write down every open task somewhere outside your head. You won't finish everything, and you don't need to. Nothing should live only in your memory over the weekend.
Review the week with a traffic light: Green for done, orange for moved, red for never started. The reds tell you what to carry forward or drop.
Pick three outcomes for next week: Choose the ones that connect to a goal you'd still care about in six months, not the ones shouting loudest today.
Put them in the calendar: Give each outcome a real time slot. If next week is already full, cancel something now, while all it takes is one polite email.
Then send the plan to one person. Louisy emails his weekly plan to his chief of staff every week, and he credits the habit with forcing him to face the tasks he keeps postponing. A co-founder, an assistant, or a peer works the same way.
If Friday can't hold it
By Friday afternoon, deep thinking is usually gone, and that's fine. Most of this session is administrative. Clearing loops and moving calendar blocks takes far less energy than strategy work.
If your Fridays genuinely can't fit the full session, split it the way Louisy does. Close the week on Friday, then plan the new one in your first hour on Monday.
Either version works. The only rule worth holding is that the planning never lands on your weekend.
Go deeper
👉 Upflow: From Overwhelmed to On Top: How Managers at Upflow Get Things Done — read this for Louisy's full system, including his ideal-week calendar and the company-wide no-meeting Wednesday.
👉 Shreyas Doshi: Advanced time management principles — worth 10 minutes if you want the full thread behind the calendar rule, plus his method for matching tasks to your best hours.
👉 Journal of Occupational and Organizational Psychology: A field experiment on weekly planning behavior — skim this to see exactly what the planning routine involved, so you can copy it directly.
Coming up on Monday
On Monday, we're sharing a short template for turning down investor meetings, plus a test for the rare ones worth taking.
Have a great weekend!