Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy.

Have you ever moved a piece of furniture only to discover a mystery orange-red rust stain on the carpet? Or maybe your favorite shirt suddenly has a new rust stain on it after a recent wash. No matter ...

Q: When we took up the rubber mat in my son’s fiberglass bathtub, we discovered black stains. Efforts to clean with mold and mildew remover and Soft Scrub with bleach had no effect. The tub was ...