Right now with all my parts I clean them down, spray them with marvel mystery oil, wrap them in Saran Wrap and put them up. The parts are going into a non climate controlled shed. Basically out of the rain.
I have two blocks under my bench. I oil the machined surfaces, put them in a large heavy Mil contractor bag and set them on a 4 wheel dolly. Just before I seal the bag up I throw 8-10 pieces of charcoal in the bottom (NON match light), the charcoal aids in keeping moisture from building up.