For the past 10 years my border terrier, aptly named Terry, has been one of my best friends. When he was a puppy, nothing seemed to faze him. He could go for a 10 mile run or stay outside in the winter weather for hours and never miss a beat.

Now that he is getting on in years, Terry has lost much of his puppy-like exuberance. He rarely will go on jogs with me, and constantly shivers and shakes in the house. I recently picked him up a dog sweat shirt, and not only does Terry seem more comfortable, but it also gives him a younger, edgier appearance.