There are several ways to remove rust from metal, including using household items and commercially available products. Here are some effective methods:

1. Vinegar bath: Soak the rusty item in white vinegar overnight, then scrub away the rust with a brush or steel wool.

2. Lemon and salt: Coat the rusted area with salt and squeeze the juice of a cut lemon or lime over it. Leave the mixture to sit and then scrub the rust away with the rind of the fruit.

3. Baking soda: Dust the metal item with baking soda and leave it for an hour or so. Then, scour with steel wool or a metal brush, removing the rust down to the metal.

4. Aluminum foil: Tear off a tiny piece of aluminum foil, dunk it in vinegar or water, then brush it over the rusty sections. Utilize a Dremel or other rotary tool with a steel brush wheel or steel wire pen brush.

5. Rust converter: Apply a rust converter with a paintbrush or roller. It acts as a primer for paint and prevents further corrosion by covering rust.

Its important to note that some of these methods may not be effective for severe rust or larger items. Additionally, it's recommended to wear protective gear when using chemical solutions.