You'll spend less money if you pay with crisp, well-organized cash, researchers
say. Researchers at the University of Winnipeg gave college students 20-dollars
and told them they could spend as much as they wanted in a mock-store. Half of
the students were given new bills, and half were given old, crinkled bills. The
students then rated how clean each bill appeared. Students carrying the crisp
20-dollar bill spent about 4-dollars on average, and those with the dirty,
crinkled bills spent about 8-dollars on average. (Men's Health)