This one is self-explanatory: Walk more and drive less. The more you walk, the more active you are. The more active you are, the more calories you burn, and the more weight you can potentially lose. Instead of driving up the street to grab your morning coffee, take a nice brisk walk up and back. If you want to take the family to the park for an hour, skip the gas-guzzler and slap on your favorite pair of sneakers instead. Not only will you save a few bucks on gas, but also your body will thank you for it.