Q. A few years ago, I removed the carpeting from two flights of stairs and replaced it with maple hardwood. They look beautiful, but they’re very slippery. A few months ago, I fell down the stairs and ...

Q. My outdoor wood steps are getting slimy and slippery from algae, the green stain that grows on them. How can I keep algae off the steps and also keep the steps from being so slippery? A. First, ...