Whether you've got rusty chrome on your car or dirty chrome on the faucets on your sink, possibly the quickest and easiest way to get them clean and sparkling again is simple: aluminium foil.
Instructables user Captain Pedantic caught an episode of Mythbusters (with our pal Adam Savage) where he heard that aluminium foil and cola were great at polishing chrome, so he gave it a go on his neglected motorcycle with great results. There's really not much to it:
Pour the Diet Coke on your rusty chrome (is there any better use for this stuff, lacking Mentos?) Crumple up some foil and use it to scrub the nasty rust away. Rinse with warm water and wipe dry.
It sounds too easy to be true, but it's a method we've been using around our own house for quite sometime. If it's just your bathroom sink that needs some sprucing up, simply buff with a flat (clean) piece and it will be good as new in seconds.
Hit up Instructables for further details. It also works like a charm to sharpen scissors.
Chrome Polishing, Mythbusters Style [Instructables]