Keep wood floors free from dirt and other gritty materials by frequent sweeping. For regular cleaning, use products specifically designed for wood floors, but avoid leaving standing water when you clean.
Avoid moving heavy furniture across the floor. Pick them up or slide rags underneath and move. If your wood floor has been finished with polyurethane, contact a professional when the floor looses its luster and gloss. Never wax a wood floor finished with polyurethane.