Your bathtub will never be whiter!! Works great on glass shower doors too- no more soap residue! Martha Stewart's Tub Scrub--works better than any other cleaning product to get off hard water and soap residue Shower Doors, One Teaspoon, Tubs Scrubs, Essential Oils, Baking Sodas, Glasses Shower, Martha Stewart, Liquid Soaps, Cleaning Products
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Natural Way to Scrub Your Tub, from Martha Stewart This is a nontoxic but effective way to clean your tub: Add one teaspoon of liquid soap and several drops of an antibacterial essential oil (such as tea tree, eucalyptus, rosemary, or peppermint) to one cup of baking soda. Add just enough water to form a paste, and use it with a sponge or brush to scour bathtub surfaces.
Shower cleaner - just vinegar and Dawn dish soap... worth a try! It says, "powerful cleaning product that will melt soap scum and tub and shower buildup, clean sinks, appliances and just about anything. Just spray it on, scrub, rinse and be amazed. For tough soap scum build-up, spray the mixture on and allow it to sit as long as overnight. Then, scrub and rinse."