Care and maintenance for floors:

Ceramic or natural stone are an appropriate choice for any floor in your home, but they're especially well suited for such areas as entryways, bathrooms, kitchens, hallways, and other areas where high traffic and exposure to water and dirt might make other materials less practical. Ceramic floors are one of the easiest floors to care for however, normal everyday wear and tear along with the occasional stain means you will need to clean them once in a while.
A more serious type of maintenance involves cleaning and replacing worn grout in between tiles. Coffee, tea, juice, jam, salad dressing, cooking fats and grease, mineral deposits and paint can all find their way to your beautiful ceramic floors. In the bathroom, mold and mildew may build in certain areas of your floor.
Commercially available tile and grout cleaners are powerful cleaning solutions for your floors. They normally contain caustic chemicals therefore you should always use rubber or latex gloves when applying them to the ceramic tiles. For really stubborn stains, you may have to use the most heavy duty solutions, so make sure there is sufficient ventilation. Pour the solution on the affected tiles and scrub with a toothbrush or other sturdy brush with plastic bristles. Be careful with very stiff bristled brushes as they may scratch the finish. For most cleaning jobs, such as removing mildew stains from grout, dip an old toothbrush into chlorine bleach and scrub the grout. The toothbrush may spatter bleach in all directions so wear old rough clothing and shoes that you won't mind having bleach stains on. After you're done, wash the tiles with some water and baking soda. Let the tile floor dry for a couple of days and then apply a sealer to prevent or at least slow the return of mildew.