During a friendly weight loss challenge I wrote a script that pulled my weight from a smart scale and inserted a rolling weekly average into my column in our shared spreadsheet.
I made a website that scrapes motogp to build my own No Spoilers website with absolutely no Javascript and a far better layout than their silly horizontal scrolling cards layout.
I wrote a script to pull data from John's Hopkins and give me daily coronavirus updates in a more digestible way (since deprecated because I'm in NZ and would rather put it behind me).
Probably a bunch more I'm forgetting about.