If you're on windows check out TimeSnapper. The classic version is free and works fine. It screencaps your desktop every 5 sec so you can watch a timelapse of

If you're on windows check out TimeSnapper. The classic version is free and works fine. It screencaps your desktop every 5 sec so you can watch a timelapse of how you spent your day. (Assuming it was on the computer!) I did find it heavy on the disk usage so I wrote a ffmpeg script to convert it to video (much more efficient).