[ The Marble shower at L'Auberge du Lac. Photo by Charlyn Keating Chisholm ] We found this handy-dandy tutorial over at the DIY Network where the Queen of Clean, Linda Cobb, demonstrates how to clean a marble shower using her homemade solution. Mixing together fabric softener and water, Cobb rubs the solution with a soft cloth and buffs the surface. Another of Cobb's tricks? Turn your shower into Teflon with Clean Shield. It'll help prevent dirt from building up. Tile experts advise not to use any other cleaners except ones that are specifically for marble, as it's highly likely to ruin the surface. Marble does scratch easily (for a stone), so don't use the scrubby side of a sponge or a brush to get stains out.