As someone who's gone from to-do list tool to todo list tool, I have now settled on paper and pencil. I have a little notebook I carry around with me. Every evening I jot down my "shippables" for the next day into a new page. I have a separate page for long term goals like "get a gardener over" that I review constantly. And that just works really. Kind of gtd and part of another method I can't recall :D