If it's the only razor you use, then -- as mentioned -- you should wipe it down and store it in a dry spot. A sock drawer is a good, dry spot for storage. I also find that placing a drop of oil on each side of the tang, by the scales, once a week helps keep the razor's pivot area clear of water accumulation, since that is a hard spot to dry.

Like mumpig, I also oil my blades that I do not use for about a week or so. I use mineral oil, since it's cheap and works well.