I've been using the "done" list for years. It's satisfying. I started it when I worked in office jobs. I realized that I'd get to the end of a week or a month and not remember what I'd done. A "done" list was something to show my manager and also a reminder to myself of all that I'd accomplished. I'm self-employed now but still maintain that list.

I sort of have a "later" list. It's more of an ideas list. Sometimes I call it my "back burner" list. If I have a day on which I don't know what to do, I'll look at that list for inspiration. Sometimes I'll finally get around to executing a task or part of the task, or I might remove it from the list.