Is your stack getting a little heavy to move around in a shoebox?
(Well, then you're doing OK!)
Check out this heavy duty US Mint Canvas Bank Bag, formally used to carry $1000 in Quarters. Its big. And strong. About 20" X 12". Excellent used condition. Clean. Imprinted on the front. The bag in the image above is the exact bag you will receive. Some small writing in red marker on the bottom left of the bag, partially visible in the image. "500 $ CULL" neatly written on the reverse of the bag in black marker.