I have a script called update-my-things.sh, which updates my Python’s pipsi scripts, my Python’s pew virtualenvs, my Rust toolchains, my VMs, my local software Git mirrors, etc.<p>All stitched together in (bad) Bash.
I like to rotate my desktop background regularly, so I wrote a small script to download the daily image from a known website and save it in a folder. Then my OS picks up a random image from that folder each minute and set it up as background image
I have a small PHP script that crawls a daily deals forum for my list of keywords and sends me an email if there is any title matching it. Has helped me saved a lot of money :)