Fantastic grout cleaning tip and solution! Clean Tile Grout ~ Mix 7 cups water, cup baking soda, cup lemon juice and cup vinegar - throw in a spray bottle and spray your floor, let it sit for a minute or two, then scrub :)
If you swish with hydrogen peroxide everyday you will have the same results plus excellent gum tissue! Recommend swishing with peroxide for minutes morning and night. It kills bacteria that causes decay, gingivitis, periodontal disease. Worth a shot!