I do. They serve me, not master me. Ad hoc. Some last a long time, some are transient. Often helpful if I momentarily accumulate a lot of TODOs, or brainstormin

I do. They serve me, not master me. Ad hoc. Some last a long time, some are transient. Often helpful if I momentarily accumulate a lot of TODOs, or brainstorming some, and the act of typing them out, and seeing on screen, helps me remember them and prioritize. Key is make it more of a win than lose. Thus I bias to plain text. Either in a notepad type app on mobile, or in vim on Mac or Linux. Sometimes in a plain paper notebook with a ballpoint ink pen -- helpful if I want to sketch out some UI mockup, or, a rough 1st stab at a diagram-amenable concept, like software architecture. I feel the problem space has been fairly solved for decades if not centuries. But use what works best for you.