Grout-Regular spraying with lemon juice, vinegar or alcohol keeps mold and mildew at bay. to clean, use 7 cups water, 1/2 cup baking soda, 1/3 cup lemon juice and 1/4 cup vinegar - throw in a spray bottle and spray your floor, let it sit for a minute or two... then scrub
Yea I did this and got a respiratory chemical burn! Be careful people, opening the windows is not enough to expose yourself to this product for longer than the brief time it takes to clean the toilet like it's meant for. Just FYI . . .