OK, I've bought the concept, bought the book, and set up the folders and all, and I'm coming to the conclusion that there's a hole in the system that regular old to-do lists take care of but GTD doesn't.
What do you do about tasks that should be done fairly regularly but aren't date-specific and don't have obvious visible triggers or drop-dead dates? At work, this can mean things like reviewing and signing off on attendance records; at home, things like balancing the checkbook and various kinds of household and automotive maintenance (e.g., changing the oil in your car). Eventually most of these things WILL become obvious and acquire deadlines if you don't do them, but for the sake of a stress-free life you want to get them done before that happens.
There's a question about this in the FAQs, and the response is, IMHO, pretty lame, along the lines of "Gee, yeah, it's hard." I think the solution proposed is that you do create some sort of date-specific next action or pointer to the task, but I'd be interested to know whether anybody has come up with a clever solution.
Thanks . . .