Q: The marble threshold for my shower has reddish marks. How can I remove them? Annapolis, Md. A: Marble can develop reddish marks for a variety of reasons, such as spilled red wine, bacteria or ...

First clean the grout. Apply a baking soda paste, or, for darker or stubborn stains, a paste of baking soda and white vinegar ...

In a recent post, we offered a few options for removing mold from hard-to-clean surfaces like wood and upholstery, but what about the wettest room in the house? It might seem straightforward to clean ...