Limescale deposits. These mainly form on faucets. To get rid of them, you can use vinegar and apply it to the surface as you would a regular faucet cleaner.

Soap stains. To remove this type of stain, you’ll need baking soda and hydrogen peroxide. Mix the two ingredients in equal parts, then apply to the surface and let it sit for an hour before rinsing.

Shower head. Mineral buildup in water can cause hard spots. To get rid of them, place the shower head in a bag filled with water, vinegar, and baking soda for about 2 hours, then rinse it.