National Car Rental and Hilton HHonors have launched a sweepstakes that will award five winners one million HHonors points each. All you need to do is register at http://www.5millionreasons.com and rent a car from National at http://www.nationalcar.com or book a stay at a Hilton Family hotel at HiltonHHonors.com by Nov. 30, 2008. Customers who complete the rental or stay by Dec. 15, 2008 will qualify to participate in the sweepstakes. For a listing of other sweepstakes, visit InsideFlyer.com and look for the “Sweepstakes Summary” link under Online Only.