These days I find myself making small notes on lots of things because I'm sick of forgetting. Eg: "Haven't used GIMP for 3 years, now how do I make a transparent background again?"
I've just been using simple text files (with VSCode for searching!) but it's getting a bit cumbersome and I'm pretty sure I'd be better off with some other system. Anyone have recommendations? Prefer FOSS.
Do you have OneNote? That's quickly become the defacto note taking app for many people at work and being adapted for personal use. Very handy, available across multiple platforms incl mobile, lots of rich features and easy organisation.
You can also use it offline if do not want content in the cloud.