There are a number of products on the market that can do the job, but I know of no home-care solution that can safely remove calcium buildup. — Diane Hobbs, via emailSafer way to polish furnitureDear Heloise: Lana D., in Peabody, Massachusetts, wrote in that she uses spray polish or cleaner on her wood furniture. Over time, the spray polish will dull the highlights in the wood grain or make them disappear. Use a high-quality automobile paste wax as a replacement for furniture wax. Clean the wood furniture with warm water and mild detergent, rinse thoroughly, and let dry for 24 hours.