Since I can remember, dogs have been a part of my family. All of the dogs that we have adopted have come from the pound; but no matter the breed, no matter how they join your family, dogs quickly form a bond forged by unabashed joy and unconditional love. Being greeted at the door by a cold nose and a wagging tail is both given freely, and priceless. Opening the door to walk a dog gives me this feeling every time. Dogs are the best companions people have, and as much as we need them, they need us. I've learned that exercise and play are essential to the health and well being of an animal. Dog walking isn't just physical exercise, it's an opportunity to explore the world, to interact with their environment, and to be a part of a pack. Intelligent creatures need to be mentally exercised as much as physically.