Howard: First of all, they're not tricks, they're illusions. And, secondly, when we get married, they're all going up in the attic so you can have that closet for clothes.
Bernadette: Why would I keep clothes at your mother's house?
Howard: Well, don't think of it that way. Once we move in, it'll be our house.
Bernadette: Is she moving out?
Howard: Why would she move out? It's her house.