Travelwriters.com just released this press release about a program that may be useful to frequent travelers. I have not tried it but it does sound promising.
About ParkSleepFly.com, Inc. ParkSleepFly.com, a trendsetter and industry leader in hotel, parking, and airline reservations, offers travelers deals on overnight stays at over 1,500 hotels located just minutes from more than 129 airports in the U.S., Canada, and Europe - along with free parking for 7-14 days or more plus complimentary shuttle service to and from the terminal.
For business and leisure air travelers, ParkSleepFly.com offers flexible airport hotel park and fly packages with the convenience of arriving the night before a flight. Customers with long airport commutes and early morning departures have a new option to relax at a nearby hotel beforehand and avoid missed flights due to heavy traffic, airport parking lot congestion, and security delays. Travelers with return flights landing late at night also use the service to book a hotel room to get some rest before driving home. Either way, through ParkSleepFly.com, customers often find the cost of the hotel room with free airport parking can be about the same as airport parking alone. Reservations may be made at www.ParkSleepFly.com or toll-free at 800-PARKING (800.727.5464).