There's cocaine in your wallet -- and that's a good thing!

When I was a kid in the eighties, a popular urban legend stated that a huge percentage of paper money contained trace amounts of cocaine. Depending on who was telling the story, the amount varied -- one person would say that it was 20 percent, another person would swear that it was 50 -- but everybody agreed that ordinary paper money was loaded with Bolivian marching powder.

Fast-forward twenty years, and the rumor still persists. This time, however, it is backed up with some serious evidence. A study taken a year ago determined that almost 80 percent of greenbacks contained trace amounts of cocaine. More recently, another study showed that the number is more like 90 percent.