Two links to expand your thinking:
The first is an interview with the musician Diego Stocco. He makes music using trees and sand. SAND! Listen.
Because so many of you listed money as a problem that you’d like to solve, I highly suggest you visit this site. Freakonomics is a fantastic book—learn the economics of events from drug deals to baby names. They also have a blog, a radio show and a documentary.
See you Tuesday (Hey, Kelsey I remember the day.)