For Small Light Rust Spots
Sprinkle coarse salt on a rusted area and squeeze fresh lemon over it. Make sure the entire area is covered with the salt and lemon and leave it to sit for two to three hours. When you come back, remove the salt and the rust should be gone.
For small metal objects that have rusted, place the object in a bowl and pour in enough white vinegar to completely cover the object. Let the object soak for several hours before removing it from the vinegar and rinsing it off with clean water. Make sure to completely dry the object so that it cannot rust again.
For pots, pans, and kitchen items that have begun to rust from washing and air drying, cut a potato in half and rub it all over the rusted area. Dip the potato in table salt and use it to scrub the rust away, adding more salt as needed. When the rust is gone, discard the potato and wash the item in warm soapy water and dry it thoroughly.
Apply Coca-Cola to the area and scrub with a crumpled up piece of aluminum foil to remove the rust. Add more of the Coca-Cola and continue to scrub until all of the rust is gone. Wash the area with warm soapy water to get rid of the stickiness and dry it well with a clean cloth.
For Bigger Rust Problems
If the rusted area is large or even beginning to eat through the metal, use sandpaper or a sander to remove the rust. Wear a mask and glasses to protect yourself from particles that may get into your eyes and mouth and wear gloves. When the rust is removed, apply a coat of rust dissolver, such as Naval Jelly, to the entire area and let it sit for at least five minutes to help with any lingering rust that the sander may have missed. Rinse the rust dissolver away with clean water and sprinkle baking soda on it to neutralize it. Rinse the baking soda away after 10 minutes and then dry the area well.