Carpooling is one of the wisest ways to save money on travelling to work. If you know co-workers who live in the same area, come up with a carpooling agreement. Put a jar at work where you and co-workers who live in the same area can put your contributions for the cost of gas needed for your carpooling. Also, carpooling not only helps you save money; it also allows you to spend time with your co-workers as well.