least four times a day. Even a quick walk around the block is 3/8 of a mile in our neighborhood; four times makes 1.5 miles, which is a very respectable amount and enough to keep the weight from creeping back up. Don't walk your dog? Time to start. Don't have a dog? Get one and take him or her for a nice long walk, every day. You and your dog will be glad you did, and you'll both be healthier for it.