You can save the world and yourself one frugal act at a time. Whenever possible, bike to work, the grocery store, the bank or anywhere else you might be going. There are bloggers who think you should live close to work to be frugal. I personally love living in the backwoods where I grew up. It is 15.1 miles from my driveway to my office. And I bike it many times every year. I had an old Huffy bike I rode forever. I decided to get myself a new flashy set of wheels and pulled out my pencil and paper to calculate exactly what it would take to get a free bike. You can read that story here. It is about halfway through the linked post.