For a while, I was tracking my productive time in a spreadsheet. I figured "what gets measured gets improved". It worked, I started optimizing my time without really thinking about it and getting more work done, feeling like I didn't want to break my streak or lose out to yesterday.

I got tired of filling out a spreadsheet really quickly, so I started writing an app to make it ultra-easy. Then of course I got busy with other things and never finished and now I don't track time anymore :'(