If you've ever owned a metal tool, you've likely dealt with the frustrating reality of rust at one point or another. Despite the perceived durability of some metals like stainless steel, no metal ...

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 ...