Bubbling stew and sputtering oil — no, that's not an incantation; it's just the nightmare existence of your poor, battered backsplash. Keeping this surface clean can feel like a never-ending battle, ...

A viral TikTok hack tells households to put toothpaste on a lemon and run it through the washing machine to banish bad smells. But engineers and cleaning experts urge caution before you copy it.