One reason cats are better, litter boxes. Dog owners have no choice but to take them outside to do their business. Well that's about to change for small dogs at least, because now there's an Indoor Dog Restroom. Yep, although not as neat and simple as a litter box, this plastic collection tray with an antimicrobial pourous artificial turf is perfect for dogs left at home alone all day, for harsh weather, apartments, condos & high-rises or just emergency relief. My tip, just get a cat and a super cool futuristic Litter Robot!