[twobyfour]

I keep all notes and to-do lists in a single system of record. These days it's Asana, but in the past I've used pen and paper, Apple Notes, and other tools.

I use GTD to keep on top of stuff. Once a day I go through everything that's been added to the system but not yet categorized. I move it to the appropriate to-do list or reference document where I'll know to find it later.

I have lists for things like "gift ideas for family", "potential software experiments", "active work projects", "books to read", or "to consider next year". I also have a primary list for things that actively need doing.

Remember, it's not the tool that matters. It's the process and the system.