DON'T:
* Use vinegar, lemon juice, or other cleaners containing acids on marble, limestone, travertine, or onyx surfaces.
* Use cleaners that contain acid such as bathroom cleaners, grout cleaners, or tub & tile cleaners.
* Use abrasive cleaners such as dry cleansers or soft cleansers.
* Mix bleach and ammonia; this combination creates a toxic and lethal gas.
* Ever mix chemicals together unless directions specifically instruct you to do so.