Loosen rusty bolts: 
If you need to remove a rusty bolt, reach for your Coke. Pour a little cola in a bowl and use it to soak a cloth. It must be thoroughly soaked in order to do the trick. Fold the cloth over and cover the bolt entirely. The carbonic acid in the cola will break down the rust on the bolt. If rust is not totally gone, repeat again until you see no visible rust.
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