I alphabitize my Game collection. And its ordered GCN, Wii, PS2, DS (Only the cases), PSX (Only one game in that collection lol.) I keep my N64 and SNES Games in my nightstand. Its easier to access. My GB Games are in a box on a shelf in my room.
I also own a number of GCN Store Kiosk discs I recieved from my uncle when he worked at Sam's Club. They are all out of order, most of the cases are incorrect, but I appear to have #10, #11, #12, #13, #16, #18, and #19. There aren't that many good demos on them. All of the cases have an image of a Violet Gamecube on a white background, with the exception of #18 which uses a platinum gamecube on a Black Background, meaning it must've been released around the time of the Platinum GCN.