Tires should be inflated to the pressure recommended for your vehicle; this information is often printed inside the door frame or in your owner's manual. For every 3 pounds below recommended pressure, fuel economy goes down by about 1 percent. Tires can lose about 1 pound of pressure in a month, so check the air pressure regularly and always before going on a long trip or carrying heavy loads. Underinflated tires can also detract from handling, safety, and how long the tires will last.

As an employer, many of your employees may want to carpool, but don’t know where coworkers live or simply don’t have the courage to ask around. You can help by administering a program to get them connected.