My two are:
Making sourdough. I personally always heard like this weird almost mysticism around making it. But I bought a $7 starter from a bakery store, and using just stuff in my kitchen and cheap bread flour I’ve been eating fresh sourdough every day and been super happy with it. Some loafs aren’t super consistent because I don’t have like temperature controlled box or anything. But they’ve all been tasty.
Drawing. I’m by no means an artist, but I always felt like people who were good at drawing were like on a different level. But I buckled down and every day for a month I tried drawing my favorite anime character following an online guide. So just 30 minutes every day. The first one was so bad I almost gave up, but I was in love with the last one and made me realize that like… yeah it really is just practice. Years and years of it to be good at drawing things consistently, quickly, and a variety of things. But I had fun and got something I enjoyed much faster than I expected. So if you want to learn to draw, I would recommend just trying to draw something you really like following a guide and just try it once a day until you are happy with the result.
I totally get that. It’s like finding a programming language or personal information manager app that you like. Have to try a bunch out to find something that works for you.
A long time ago I dabbled in script-generated ray tracing. That was fun, but I never got great at it.
I also learned PostScript for a while, because I wanted to create some very intricate printable forms. Using WYSIWG tools was just not cutting it. I ended up with some large 300dpi forms that I liked, whuch were perfect for the assignment.
Sometimes a different model or approach can make a huge difference to your work flow.