Do you have tools, knives, scissors with rust on it? Do not throw them away! You can easily restore them to their beautiful shiny appearance.
A simple aluminium foil and a few drops of water will completely eliminate the rust!
It is a chemistry principle: the rust is composed of iron oxide and it decomposes when in contact with aluminum and water!
Wet the rusty metallic object and pour a few drops of water onto crumpled aluminum foil.
Rub the rust with the aluminum foil.
When dry, add a few drops of water, and rub a little more.
The results are really amazing! The proof is in this short video.