Halloween Countdown Calendar last year. The idea came from the Imaginisce website. Instructions can be found at www.imaginisce.com/documents/cache/DOC240_HWAdventCalendar.pdf?20081001095617. My title and envelope panels measure 7"x10" and the center panels measure 10"x14". I used a 2" circle punch instead of a square punch and did not use any of their supplies. It took us only a couple of hours and uses only things I had on hand; scraps of paper, stickers, a manila envelope (mine was even a used one) and a cardboard box (courtesy of Close To My Heart). Cost is probably less than $3. ENJOY! I would love you to email me a picture of yours!