my gas bill dropped $60 a month" man that adds up fast. My buddy did the same thing last spring and he was shocked at how much he saved, but the funny part was he started noticing stuff he never saw from his car. Like this little taco cart two blocks over that he'd driven past for years without knowing it existed. He also lost like 15 pounds without even trying, just from the daily rides. His wife gives him a hard time about the backpack sweat but he says it's worth it.