1. Take care to avoid exposing porcelain to permanent inks or dyes, as these might not be removable.
2. Do not use cleaning products that contain acids or ammonia (and other harsh chemicals) as these can damage grout and glazed surfaces of the tile.
3. Regular dust mopping, sweeping, or vacuuming is recommended prior to cleaning with liquid products.
4. Regular, basic cleaning with warm water and mild soap is sufficient to keep floors looking good.