National Emerald Club is offering a One Two Free promotion through the end of January for rentals in the U.S. and Canada. Emerald Club members will receive one free rental day for every rental of two days or more through Jan. 31, 2009. You must rent a midsize or larger vehicle and register for the promotion at http://insideflyerus.wpengine.com/link/?1340 – There’s no limit to the number of free days you can earn during the promotion.