Each MSTRE postcard ordered will be unique. Each will contain a personalized message and a download code for the entire album. Once you've downloaded the album, you can put the postcard on your refrigerator, if you have a refrigerator, and if you're into that sort of thing. You can throw away the postcard, but that would rather defeat the purpose of ordering it. You can put it in your special little scrapbook. You can use it as a bookmark. Hell, you can do whatever you want! Or don't order one. Actually, you know what? Don't order one.