This kid knows how not only to wash the floors, but also to collect dust from the floor. I buy cheap viscose rags from Bill, cut them in half and hook them to the dry cleaner. After cleaning, the rag can be turned over and run again with the clean side. Dust sticks to such rags just fine, and the floor becomes even cleaner! I don’t recommend washing the rag after that - it’s easier to throw it away right away ;-)