I am so ashamed.  The grout between my bathroom tiles is just disgusting.  So my goal before Thanksgiving is to get them sparkling clean!  I am not a cleaning diva, but I do give it the good ol’ college try when needed. I get most of my cleaning tips from either Home Ec 101 or watching Kim and Aggie on How Clean is Your House - a BBC America favorite of mine.

I’ve learned the best way to clean grout is first try using soapy water (but not bleach if you have colored grout).  If this isn’t enough, use vinegar (equal parts vinegar and water) or baking soda.  Get an old sturdy toothbrush for the detailed scrubbing - which you’ll do in small circular strokes.  You can try regular household cleaners, too but whatever your choice make sure you thoroughly rinse.

If none of this works, according to Do It Yourself dot Com,

For heavy duty stains, use even stronger products such as oxygen bleach powder, hydrogen peroxide, or chlorine bleach. These products should be well diluted before use. You can also find heavy duty cleaners at hardware stores or janitorial supply outlets. If you go this route, however, you will need to read labels carefully and follow directions to the letter.

Good luck!