My most successful self-manipulation trick has been to tell myself that I have to take a 15 min walk before I can watch tv: if I'm too tired to move my body for even 15 minutes then I'm too tired to veg-out and need to sleep. Usually by the time I'm done I'd rather keep going than watch tv anyway.
So what are some other tricks you use? I'm looking for knew ideas and insights into the psychology of weight loss... hopefully something i can use to psych myself out on those days when the gym seems evil lol


