National Car Rental is once again offering a One-Two-Free promotion for Emerald Club members through Dec. 12, 2008. For every two qualifying rentals in the U.S. and Canada, Emerald Club members who register for the promotion earn one free rental day–with no limit to the number of free days they can earn. You must rent a midsize or larger vehicle twice, for two or more consecutive days each to receive one free rental day via email. Participating members can also earn one free rental day for referring a friend who enrolls in Emerald Club. Register at http://www.emeraldclub.com/12FREE
If you enroll in Emerald Club for the first time, you can also receive free membership, a $50 value.