Use a damp cloth to blot spills and spots as soon as they happen. For tough spots, such as oil, paint, markers, lipstick, ink, tar, or cigarette marks, use acetone/nail polish remover on a clean white cloth, then wipe with a damp cloth. Always avoid allowing liquids to stand on your floor.
Don't use steel wool or scouring powder. Also, don't wash or wet-mop the floor with soap, water, oil-soap detergent, or any other liquid cleaning material. This could cause swelling, warping, delamination, and joint-line separation, and void the warranty.
Don't use any type of buffing machine.