Choosing and buying a dog is not and never can be an impulse decision. There are many things to take into account, the size of your accommodation, whether or not you have a yard, can you exercise the dog as much as it needs to be in optimum condition? Crucial honest evaluation is imperative, it is no good buying a dog that needs a huge amount of exercise such as a greyhound because you are a couch potato and want to break the habit. If you want to stop being a couch exercise get up, walk, and when you have an established walking routine, get the correct group of dog that falls into the doable exercise bracket.