I live in a very humid climate that is harsh on anything made of polished steel. First and foremost, I don"t keep my razors in the bathroom. In my climate I see no reason to "stoke the fire" so to speak. Second, I do use Renaissance wax, but only apply it about once a month, and if I forget, the babys might not see wax for a good while. Most important of all, I make sure the razor is DRY, and I mean DRY as a powder house, before I put it up. I do use mineral (baby) oil, but only if the razor wont be used for a good while (weeks). All this being said, I feel the most important thing is to be sure your razor is dry when put away. I keep my razors in felt lined wooden boxes and have never had a rust problem. Best Regards and Happy Shaving, wildhog