Mouthwash, (Listerine) does an amazing job on cleaning tile grout. I use an old toothbrush and small squirt bottle of the mouthwash and scrub it clean.

After you get it clean it's a good idea to apply a grout sealer to help keep it from absorbing stains - recommended by the guy who installed our tile. It has to be repeated now and then, depending on how much traffic or scrubbing the area gets. The sealer is costly but a quart goes a long way. Get product recommendations from the home store or others that sell tile, or maybe from youtube or other internet sources. I don't remember the brand we used, but it was very wet and runny - almost like water, and the man who did the work just rubbed it on with a rag. You might need solvent proof gloves.

I just finished reading something about grout on Young House Love blog. These kids seem to know what they are doing. I've followed their blog for about a year now. Here's the post:

http://www.bloglovin.com/frame?post=...click=0&user=0

Sparky's mom - thanks for posting that link. I am definitely going to try that!!!