I've been putting in 20-25 minutes a day for about two weeks, which isn't itself much of an accomplishment, except for the fact that I've actually been doing it, and it's starting to get easier! Less huffing, fewer puffings, pushing myself to go a little farther, a little faster; I'm starting to enjoy it, I feel funny when I take a day off. Now if only quitting smoking was easy, I'd be set! One step at a time, I guess.