Best thing we have found (and it's really cheap) is to clean your appliances with soapy warm water, rinse and dry. Then take regular mineral oil and wipe it on. Put the rag in a zip lock bag and reuse it each time until it just needs to be thrown away. In addition to keeping down fingerprints it helps to keep water spots off the front of the dishwasher. Apply with the grain of the polish in the stainless steel.