The used butter wrapper idea I first saw from the Tightwad Gazette.
It is a newsletter that has spawned many books written by Amy Dacyczyn. Its pronounced as decision. If you would like more info about her books, here is a link at Amazon.com for her. (with a look inside feature to see if you like her writing)
http://www.amazon.com/exec/obidos/s...6581278-5623821