I like Doug's solution, which I formerly utilized (in Tucson). Just this morning I had occasion to search for four magazines I had stored at least twenty-five years ago. I did nothing sprcial to them - just clean and dry.

No rust or problems - noce, clean, and ready to use. This is in southern California, where we get at least some rain every winter.

You can probably skip the oxygen absorbers.
Geezer in Chief