Tidy Charlize Theron Drives Townsend Mad 7/5/08

Charlize Theron's tidy nature has become a big problem at home - because she keeps 'hiding' boyfriend Stuart Townsend's stuff.

The Monster star insists on putting everything away and then forgets where items are. She tells USA Today newspaper, "I don't like things lying around in the house that are not being used.

"I'm going through the house going, `When was the last time you used this? You haven't used this.' "A year later, he's like, 'Where did you put that thing?' and I don't know. He's like, 'Babe, you're killing me.'"