We all know that not wearing shoes inside can go a long way in keeping our house clean, since shoes can drag in dirt, pesticides and even lead. But going barefoot can be a bad choice, too. Natural oils in our skin can leave deposits on the floors, which work like a magnet to attract dirt. The solution? Take off your shoes at the door and lay them on newspaper (which absorbs toxins); wear socks inside the house. Keep a tray of clean socks by the door to offer guests who come to visit.