I've read that keeping the razor in a humid environment like a bathroom medicine cabinet can cause rust problems, but my bathroom is small and there is no counter for me to keep my razor sitting out, and the back of the toilet isn't something I'm willing to consider. I do keep the bathroom door open after showers to allow the humidity to escape, but I keep the medicine cabinet closed. My brush gets dry in there, so I'm guessing that rust issues are minimal, especially relative to the convenience of having my razor in the bathroom, and the fact that I only have and use one, so it gets used, dried, and stropped daily.

Also, is the strop ok if I keep it hanging on the bathroom door, or should I bring it in and out with me?

Thanks!