Book any coupons or discounts in your reservation. When you get to the counter, ask if there are any available upgrade specials you missed. Finally, be careful not to sacrifice quality for price. If you decide to take Camilla, your faithful Chevy, get her checked and the paperwork in order as soon as possible. Have her oil changed and check the fluid levels and tire pressure.
Tire pressure affects the ride and gas mileage.
Depending on your destination, you may also need more antifreeze, snow tires or recharged air-conditioning. Don't wait until the last minute. You want time to have anything fixed. You also want to drive around campus and make sure that the radiator doesn't give out right after you have it replaced. Remove your gym socks and any other items that you won't need for your trip.