In the thread about the Sandpaper Disc Station, Christian displayed a beautiful shot of some great storage. His "three roles of sandpaper that are stored at the shop-built holder," reminded me of these Bargin Boxes at Klingspor's. I ordered two of them last year and they are really worth the money. The prices haven't changed since then.
They have sheet and belt ends for us flat landers and all size rolls for the turners.