Chuck , I like Clear Plastic Coin Tubes . Nickel ones work great , and are about 3.1 inches long , so will work for everything but the really long Cases . You can buy these Tubes at any Coin Store . I picked up a wooden Tray with slots just big enough for the tubes , or if you are handy you could build an Herb Rack type holder . I use a Dymo Labeler to mark the Tubes . Now I need more Cartridges !