How to remember what you worked on last week

You need last week back - for a performance review, an invoice, a status report, or just the Friday question “what did I even do?” - and memory hands you three highlights and a shrug. This is not a personal failing; it is how memory works. Days are compressed to their most dramatic moment, and routine work (often the majority of the value you produced) leaves no trace at all.

The reconstruction methods people actually use are all archaeology: scrolling your sent mail, your commit history, your calendar, your Slack messages - assembling the week from its exhaust fumes. It works, badly, for an hour at review time.

The alternative: a record that writes itself

A work journal solves this the boring way - by writing everything down as it happens, so there is never anything to reconstruct. The catch has always been that keeping a journal is itself work, done at exactly the moments you have the least attention to spare.

Dayflow automates the journal completely. It records your Mac’s screen at one frame every 10 seconds and has AI write each day into a timeline of plain sentences - “Refactoring the checkout flow, 9:15-11:40,” “Q3 planning doc, 1:05-2:30.” Last week is not a memory exercise anymore; it is nine scrollable pages. It is free, open source (MIT, 6,600+ GitHub stars), and everything stays on your Mac.

What this is worth in practice

• Performance reviews: the difference between “worked on the migration” and a dated list of everything you shipped in the quarter. Your self-review becomes selection instead of recall.
• Invoices without live timers: if you bill loosely (day rates, retainers), a truthful record is enough - reconstruct any day in a minute. (Per-project billable-hours tracking with rates is a different tool category.)
• Status updates: standups write themselves when yesterday is a document.
• The Friday feeling: most weeks look better in the record than in memory. The work happened; you just didn’t file it.

Start before you need it

The one catch of any journal: it only contains days after you started it. The review is in March; the record starts today. Dayflow takes five minutes to set up (macOS 14+, no account), costs nothing, and next week “what did you work on?” has an answer you can scroll.