Can anyone give me an idea of what to do about the subtle staining on my razor blade. I put oil (either Rem oil or mineral) on my carbon blade faithfully after each use, but I'm seeing the slow growth of dark stains or streaking on it as time goes by. Is there any kind of regular maintenance I can do to keep the blade looking new without dismantling it or dulling the edge to the point where it must be re-honed? Should I just allow it to age gracefully and not worry about its' appearance? I bought the razor from Bob Keyes in like-new condition and was hoping to keep it that way. Any help and advice will be humbly appreciated, thanks.