With a list of school supplies and calculator in hand, Diamond Emory, left, compares prices of erasable markers with her five-year-old son Eric at a Wal-Mart store Tuesday, Aug. 19, 2008 in Canal Winchester, Ohio. Parents trying to tighten the household budget can use shopping for school supplies as an opportunity to teach even young children some important lessons about money. (AP Photo/Kiichiro Sato)