Here are the top 5 stains that you want avoid, prevention here is key. Spilling and resulting stains can or will damage as well stain surfaces.
1. Bleach (includes automatic dishwasher liquid)
2. Acids (tile or toilet bowl cleaners, urine or vomit are acidic as well)
3. Hair dyes (dyes…)
4. Alkaline based cleaners (like drain cleaner, or oven cleaner)
5. Kool Aid or other fruity drinks or teas (if its red or pink look out)
Use prevention as the best cleaning technique spills any of these items will present extreme to impossible stain busting challenges.