Calf Raises
Stand facing the back of a strong chair, or any other support such as the back of a couch. You can also do this on the stairs, holding on to the banister with your heels hanging off the edge of the step. Slowly raise the heels as high as you can, then lower. Do three sets of 10-15. If this move becomes easy, lift one foot slightly off the floor, placing all your weight on the other foot.