Lighten up your car. Roof racks hurt mileage by spoiling your aerodynamics. If you don’t use ‘em, lose ‘em. To increase your mileage even more, take the excess weight out of your car. Things like golf clubs don’t need to be driven around everywhere.
If you're at least 62 years old, you can score a $10 lifetime pass to America's federal parks and recreational lands. But act quickly because fees are about to jump.