All hardwood floors should be cleaned regularly. To accomplish that, simply sweep, dust mop or vacuum the floors with the beater bar turned off to remove dirt and grit from between the floor boards.
Avoid using a wet mop or steam mop on hardwood floors as water and steam can dull the finish, or even damage the wood over long periods of time.
Place throw rugs at all entrances, avoiding those with rubber backs, which can discolor wood floors.
Special rug mats can be purchased from a wood flooring retailer that will protect the floors from discoloration. Throw rugs will help keep outside dirt and other debris from scratching the floors. Scratches also can be prevented by placing floor protector pads on the bottoms of the legs of any furniture that comes into direct contact with the floors.
When spills occur, be sure to clean them immediately with a dry or slightly damp cloth. Allowing spills to remain on the wood floors could damage the finish, and possibly the wood. Avoid walking on the floors with sports cleats or high heel shoes that are in disrepair. These can scratch the finish, or even dent the floor.
Finally, when the floor begins to look a little dull, use a wood flooring cleaner recommended by your installer to renew the luster. Be sure to use the product as directed, and use only products that are compatible with your wood floor as using the wrong type of cleaning product could damage the finish, and possibly damage the wood as well.