Adult Basketball / Softball Leagues

I think a great way to stay in shape is to join an adult basketball league. If you are a little less ambitious (or if basketball just isn't your game) then try softball! If you live in a big city like I do (NYC) then you may have to pay a bit to join one of these leagues but it's definitely worth it. You may meet some interesting people in the process as well.

The point really is to make exercise more than something you have to do. Make it something you want to do. Remember when you were a kid and you used to go out and play all day? Well I did anyway, maybe you were one of those kids that stayed in playing video games...