We've all heard that the type of wood floor you have determines the cleaner that's required. That's not entirely true— what really matters is your floor's finish. Find out what type of finish is on your floors before you clean, or you could end up damaging them. Surface-sealed floors can be swept and then mopped with a gentle pH-balanced cleaner. Untreated or oil-treated floors should be coddled, simply wiped with a damp rag when necessary and protected with a liquid or paste wax.