I use a Cellerciser which I can use indoors or out on my deck year-round. It's a high-tech mini-trampoline and 10-30 min a day is enough to get you in shape or maintain without injuries, in all kinds of weather, to music or TV of your choosing. Watch some videos from Dave Hall for more info. Great for bone density too.
Light hearted - Confessions of a Teenager?
Best Supermarket Substitutions?
Only 50% of middle age adult manage more than 1 brisk 10 min walk a month.
