I always take it with a grain of salt, and I definitely don't make a habit of eating the calories I burn off with exercise. I won't feel as bad if I go over a bit if I did exercise, but I just see it as more fat I could be getting rid of so unless I just have a really hungry day, I try to leave it at that. I'm not always very successful, but it's a goal anyway
I think someone mentioned that our bodies become efficient with the exercises we do, and I can definitely see that. I'm doing some strenght/yoga exercises on the Wii Fit as well as the free step. I'm still working up a sweat and went from 30 minutes to 60 minutes, though sometimes I do around 40-45 because the 30 minutes was getting to be too easy for me. I'm not sure what I'm going to do once 60 minutes isn't as easy, but ultimately I think I'd like to join a gym and do some classes/weight training/machines/etc.