Q: I have a cast-iron skillet that I have been using for a few years. It has brown, rust-colored stains that don’t come off, no matter what I do. I’ve tried kosher salt and a small chain, soap, a ...

Finding a rust stain on your shiny quartz countertops can be alarming, but it doesn't mean permanent damage has occurred. Quartz is a big investment and a beautiful design statement, so using the ...