One of the reason I would choose cat is because they are cleaner and neater than dogs. Cats wash themselves by their tongues most of the time, so they don?t smell and they always look clean. While the dog, if it wasn?t given a shower at least once a week, it would smell as well as the house. Another reason why cats are clean is because they poop and piss in one designated place in the house which is called the litter box, once that box is shown to the cat, it will use it reguraly. Unlike the dog, that needs to be walked out at least twice a day to get its things done, and whoever walking it has to pick up the waste after him, so cats are less work than dogs.