Tip: How to Clean up Grout
I love this product, it is called Grout Refresh or Grout Renew, Mapei makes it.
If your grout on your floor is stained, or you just want to change the color. One bottle will do the trick. I have changed the color of my grout in both bathrooms over 3 years ago and it still looks like new. It comes in a variety of colors.
Make sure you clean your floor and grout before applying. It is a time consuming task, but well worth the trouble. When I did it, I used an artist brush and wiped away the excess and just let it dry overnight. Great when redecorating a bathroom or kitchen and need a change without replacing the floor.
(re: Cleaning Tips Challenge-(re: Cleaning Tips Challenge-http://www.hometalk.com/26729461/e-cleaning-tips-challenge)