Both of my cats do a good job of grooming themselves but I do brush them a couple of times a week. They are short haired cats and it is very easy, and Trevor especially just LOVES being brushed. When he sees me get the brush out he literally runs after me, meowing all the way. He just can't get enough and the purring is deafening! Andy tolerates it but not for long. When he's had enough he bites the brush.