I personally use a cabinet with 4 shelves with a glass front door. One important point I would like to add is that wherever you store your cards (box, briefcase, tool case, etc) you should place a couple of packs of silica gel or other dessicant in the inside to eliminate humidity or moisture in your storage to help protect your cards. Silica gel packs are the small square pouches containing what feels like little beads that come included in various products that you buy and probably discard with the packaging. If your wife/mom/girlfriend buys a new leather purse, for example, be sure to check inside because there will probably be a few packs of silica gel inside.