If you wash your hardwood floor with water try putting a cap full of vinegar in it so that the wood is cleaned. You do not want to let water set for a long time on the floor,because it may absorb it and expand the wood and cause it to become worn down faster with use.The vinegar acts as a cleaner and it helps the wood to dry. Do not wash the floor in vinegar everyday. Just Occassionally. Use a Swifer or something like it for surface dirt if you want to clean them everyday. The less wear, the less tear.