i got a free can of scrubbing bubbles- works like oven cleaner but without the harsh chemical smell. Beauty for this type of tiles. The vinegar is better than bleach, i think, for mixing with the baking soda- for my lungs anyway. Bleach in my shower would nearly take me out! Ahaha- i'm a pillar of strength, eh? B)
Homemade Grout Cleaner- Getting down on all fours to scrub out your tub while breathing in toxic fumes is not fun. As one can imagine, inhaling these chemicals is not good for your lungs. Make your own homemade grout cleaner mixing up a ratio of 1/2 cup of baking soda, 1/4 cup hydrogen peroxide, and 1 teaspoon of liquid dish soap. Shake it all.