When I received my new Sale-a-Bration book from Stampin' Up, I opened that paper cover and discovered beautiful DP on the inside. I don't know if that was what Stampin' Up intended but WOW, 2 free 8 1/2 x 11 sheets. When layered against solid cardstock, you cannot see the images that are on the cover.
I pulled some solid colors from my scrap file, punched out some ovals, and stamped with a Thank You sentiment from SU. Easy peasy fast card!