I am curious if anyone uses Saran Wrap as a waterproofing protection. I use ziploc bags and vacuum bags for most stuff but I have a few things I would like to wrap up that don't really work e.g. larger books, my backup computer. These are things that are on the boat but that I might use once every six months or so. I would love to store them away in a locker but am concerned they might get damp.