Say goodbye to boring old one-trick pony pizza boxes, and hello to the Swiss Army knife of cardboard pizza receptacles! It was 20 years ago that William Walsh, 42, ripped off a piece of a pizza box to give to a college buddy to use a plate. Now, after two decades of tinkering, necessity (or laziness) has become the mother of invention: Walsh has created GreenBox, which he hopes will revolutionize how Americans consume pizza. more ›