Paris Hilton is running out of space in her house to keep her vast collection of more than 1,000 pairs of shoes. The socialite-turned-pop star confesses footwear is her main vice and her pad is littered with discarded and some never-worn shoes. The 25-year-old says, "Like most girls I'm passionate about shoes. My house is like some giant closet because I just put them wherever they'll fit."