Scrape the surfaces to be painted with a single-edge razor blade to remove soap scum buildup. Focus on areas under the soap tray and the tub or sink drain. Wipe all scrapings into a garbage bag.

Q: We built our house on a tight budget years ago. Now I am divorced and would like to remodel and install ceramic tile in the bathroom. How do I prepare the new shower walls and add tile? A: Ceramic ...