Liz Borkowski
It's Bike to Work Day! Here in DC 14,000 people signed up to participate, and volunteers staffed 72 pit stops to offer refreshments and prizes to cyclists. Between 2006 and 2011, the number of DC residents who commute by bike jumped from 5,667 to 9,669 (accounting for 2% of commuters in 2006 and 3.…