Cat

Everything for cats — litter trays and scoops, food and creamy treats, harnesses and collars, grooming combs and shampoos, toys, and feeding bowls.

Cats are fussier than dogs about two things in particular: the shape of the bowl they eat from, and the tray they are asked to use. Both are worth getting right before anything else, because a cat that dislikes either will tell you in ways you cannot ignore.