Drive less, walk more, safe money every month.

Save money by driving less & walk more. I am amazed how much money I am saving from driving less, by planning my grocery shopping & outing. After work, I walk to do all my shopping for the week. For outing with friends I take turn to car pool, this way all my friends & I drive less too. I am saving the environment & safe some money too. How are you guys saving money at the pump?