The answer to 'how to maintain tile' is to regularly clean and seal your tile floors to keep them looking their best. Start by sweeping or vacuuming to remove any loose dirt or debris. Then, use a pH-neutral tile cleaner and a mop to gently scrub the tiles, being careful not to let excess water seep into the grout lines. Once clean, apply a tile sealant every 1-2 years to protect the surface from stains and damage.
It's also important to address any cracked or damaged tiles right away, as this can lead to further deterioration. If you notice any issues, it's best to consult a professional tile installer who can properly repair or replace the affected tiles.