Metal-bottomed products, like shaving cream, are often to blame for stubborn and unsightly rust rings around the tub. The good news: A few preventative steps can keep them from appearing (and save you some major elbow grease!).
The easiest solution? Place a plastic lid underneath metal-bottomed bathing products to prevent rust from forming and creating a ring on the tub. If you have a few minutes to spare, take the time to brush a coat of clear nail polish on the metal ring around the product’s base. With the bottom coated, you can nix the plastic lid and still ward off rust stains.
More bathroom cleaning tips.