How often hard floors are cleaned is up to the individual. However, any spills should be cleaned immediately when noticed. When spills dry they become sticky and attract further dirt, causing more cleaning work. Daily dusting can help maintain the cleanliness of a hard floor.
Hardwood floors should be cleaned using a lightly damp mop. Popular cleaners include Murphy's Oil Soap and Bona. A weekly light mopping will take care of most of the cleaning needs of an average household, according to the Bona website. Tile and linoleum floors should be swept daily and mopped at least once a week.