This is a no smoking property but written permission was given to smoke (one family member smokes) in the backyard only. the home and garage was reeking with smoke. the whole house had to be painted due to damaged, discolored walls.

These tiles are herder to clean as dirt gets caught in the pock marks.We don't use porcelain, they are too brittle and harder to cut, more breakage.All ceramic tiles will chip, drop a heavy object on them and they will break, pour red wine on ceramic and leave it there for days and they will discolor a bit, but not usually bad enough to replace a tile, but if you have to, so be it, that's why you keep spares.I really don't see enough difference between the price grades to justify it and have never replaced a tile floor as yet, some are 20 years old and still look great.I am not saying you should choose the cheapest materials, you need a complete decorating scheme, that is neutral, easy on the eyes, and totally maintainable and durable.

Sugary spills can permanently discolor the surface, particularly if not wiped up right away.

The bathroom sink and bathtub are severely stained, with the bathtub having a 2 foot wide black discoloring that rises about 3 feet up onto the connected wall.

Wood stains can sometimes lead to discoloration of your glasses.

I literally test water for a living and have never seen water actually be discolored from corrosive water/copper.

Those fiberglass surrounds crack and when they age they discolor and look really dirty.

I would do the discolored/stained areas.I currently have a cat house.

In the attic if you see discoloration on the underside of the roof it may have a leak.

Mold and/or mildew growth can often be seen in the form of discoloration.