I've been using elastic resistance bands for some time now. They come in different resistance levels, and you can combine two together to increase the resistance. There are different brands .. but I know that for most of them, you can buy a separate "accessory kit" for an inexpensive price, that includes foam padded handles, a reinforced nylon foot loop for leg work, and a special padded gizmo that you can loop over a door. These tend to prolong the life of the bands, since the nylon loops put less stress on the elastic, and less risk of tearing or puncturing. (It's quite painful to have a band snap while you're at maximal pull ... not just to your arm or leg which gets yanked, but the ends can whip into your face )

I have one of the exercise balls too. It's quite a workout just sitting on it, trying to stay balanced and keep the spine straight is a great workout for the thighs and buttocks.

I love 'em. And for sure, I'm going to check out the workout routines Fern posted.

thanks

Doreen