After the tiles have been laid, residual cement must be removed thoroughly.  This residual cement is a thin, almost invisible film of cement from the grouting. Dirt attaches to this film, which makes the tiles difficult to clean. A good tile-layer always removes the residual cement carefully. Special cement remover is also available. Floor tiles should be vacuumed regularly. Rinse them with water from time to tome too, adding a de-scaling agent like cleaning vinegar. The dirty water must be completely removed from the floor, so rinse it with clean water copiously. This prevents striping when the tiles have dried. You may also wipe the floor with a dry cloth to remove any remaining dirt. Cleaning products may leave a thin film of grease that can attract dirt. This is why you should exercise caution when using these products. Large doormats at all the entrances not only protect the tiles but cut down the maintenance. It is best to cover the underside of chair and table-legs with felt or another material. This will prevent scratches