Cleans up Lime and stains on stainless steel drain

My stainless steel sink drain and faucet was looking tired—dull, faded, with some lime buildup. I reached for my trusty WD-40, applied a small amount to the drain, and buffed away the shine back and removed the and hard water deposits. Then, with the same damp rag, I polished the faucet—and just like that, what was once dingy and crusty now shines like new.