If your house is outfitted with a lot of stainless steel, chances are after a few months of use, everything is covered in fingerprints and stains. If you want to clean it easily and leave it with a nice coat of protection, This Old House recommends using a little WD-40.
Photo by: Joshin Yamada.
You need to remember WD-40 is a petroleum-based product, so don't use it on anything in the kitchen without cleaning it thoroughly afterwards. Even still, if you're trying to protect countertops, clean a fridge or keep a sink clean, it's a great use for a product you likely already have sitting around. Hit up the link over on This Old House for a list of more clever fixes to common problems.