I've tried using HabitRPG before, but didn't stick with it. I've started using Lift, working out every day following the http://7-min.com. Somehow the expectation of checking off habits for today keep me going through the motions, and the automated timer reduces friction of changing into the mental state appropriate for exercising.
This is the public group instrumental rationality diary for June 1-30; it's going up pretty late (sorry!) but entries for earlier in June are welcome.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!
Next diary -- July 1-15
Immediate past diary -- May 16-31
Rationality Diaries archive