My cat has one of those basic scratching post/cat houses at my place. She typically lays down on top of it. Though she will occasionally go in the holes on top and somehow turn around (it is placed against the wall so she can't exit the other side), proving yet again that cats have no bones. Also, before someone yells at me for the seemingly inconvenient placement, if I don't brace the cat house in front of something, she will knock it over with the force she uses to jump on it. Also, it's by the balcony window so she can chill and look outside of a third floor view!