Free stuff is always better. Right? Well, instead of joining another gym and wasting my money not going, I focus on exercise that can be done without paying a penny. The one I am into now is hill walking. Where I live, there are plenty of hills and I read how this type of walking helps every part of your body. I can definitely tell a difference in my overall strength, energy and shape since I began this type of exercise and it didn't cost me anything.