To clean hardwood floors effectively, start with daily light cleaning using a dry mop, vacuum, or broom to remove dirt, dust, and debris. For deeper cleaning, use a vacuum followed by a damp mop with a hardwood floor cleaner designed for sealed wood floors, avoiding excess water and harsh chemicals. For spills, blot immediately, then spot clean with a appropriate cleaner depending on whether the floor is sealed or unsealed. Monthly deep cleaning involves moving furniture, vacuuming, and washing the floors with a spin mop or wet dry vacuum, always keeping moisture minimal to avoid warping. Optionally, waxing can restore shine after cleaning. Avoid steam mops or cleaners with ammonia and harsh abrasives unless specifically recommended for your floor type. Always clean along the wood grain and dry floors promptly after mopping to preserve finish and prevent damage.