OSW=One Sheet Wonder. The idea is to take an 8½"x11" sheet of cardstock, either a printed one, or one you make yourself by stamping, or use of techniques such as brayering, direct-to-paper, polished stone, or other background technique. You then plot out how to cut the page into as many pieces usuable for making cards.
The cs I used for my OSW was a glossy purple, sparkly page. Guess that says more about me than I'd care to admit! The layout comes from another stamper/blogger who kindly offered it for personal use on her site, along with pictures of the cards she made from her OSW. Thanks, Julie! Here's Julie's blogsite address: http://mutchtostamp.blogspot.com/
I haven't used all the pieces of my page, but here's what I've done so far. Apologies for the quality of the scans, but the scanner doesn't like bling!