When you were young, you may have selected your tennis shoes because they promised to make you run faster and jump higher. Remember those? Then as you got a bit older, you may have really wanted the brand that would get you noticed—those overpriced status-symbol athletic shoes. As the years went by and you put on the extra pounds in all the wrong places, maybe it occurred to you that it might be a really good idea to get some exercise. So you went out and bought some stylish and expensive fitness footwear that promised to help you run faster and jump higher—and wore that pair to go shopping at the grocery store. Then you finally realized…
