Save $2 a Gallon: Walk, Bike or E-Bike

Keep your wallet fat and your pants loose. Whenever possible, walk or bike. If your commute is a little too long to manage, try an electric bike, which provides an electric boost.

Every mile you pedal or stride saves you gas, saves you money and helps you stay in shape. If you trade in a trip in the average car, you'd save about $2 per average commute. (Use the money to buy a new umbrella for rainy days.)

During the hot summer months, though, be sure to check the air quality forecast in your area. Particulates, ozone and other components of smog can make it unhealthy to exercise outdoors on some hot, sunny days, particularly during the evening commute. Those with asthma or other lung or heart ailments are most at risk.