How to structure things done regularly, but for an indefinite period of time.
If I want to write one post on each of two blogs every week and use that time for exercise on the other three days of the work-week . . . and I want to do this for an indefinite period of time (i.e., there is no "end," making it difficult to define these things as projects), what are the best ways to do this within the GTD system?
This seems like such a common type of thing; I'm surprised it isn't addressed in the book. Or is it and I missed it?