Does anybody have any promo codes which are valid beyond early February? Below is all the info I can find for current rental promos on WN's site:

Budget: Earn up to 5 times the credit plus save up to 30% off your rental
Now until January 31, 2011, the longer you rent the more credits you will earn with Budget. Plus, you can save up to 30% on all Budget rentals. This offer is valid on all car groups at any participating Budget airport location in the United States. For reservations, book online at southwest.com. Please enter U072700 in the Budget Customer Discount BCDfield to save up to 30% off your rental. Also, enter MUAZ039 in the Coupon Code Field to receive your appropriate credits. Be sure to provide your Rapid Rewards account number at the time of rental to receive your credits. (Same as Avis below)

Avis: Earn up to 5 times the credit plus save up to 30% off your rental
Earn up to 5 times the credit plus save up to 30% off your rental with Avis. The longer you rent, the more credits you earn! Now until January 31, 2011, you will receive up to 5 times the credit and save up to 30% on all Avis rentals.
• Rent for 1 day and receive a half credit (.5 credit per rental)
• Rent for 2 days and receive double credit (1.0 credit per rental)
• Rent for 3 days and receive triple credit (1.5 credit per rental)
• Rent for 4 days and receive quadruple credit (2.0 credit per rental)
• Rent for 5 days or more and receive 5x credit (2.5 credit per rental)
This offer is valid on all car groups at any participating Avis airport location in the United States. For reservations, book online at southwest.com. Please enter K024743 in the Avis Worldwide Discount AWD field to save up to 30% off your rental. Also, enter MUAA006 in the Coupon Code Field to receive your appropriate credits. Be sure to provide your Rapid Rewards account number at the time of rental to receive your credits.

Alamo: GET 3x RAPID REWARDS CREDIT® and save up to 40% with Alamo
Just rent any car for two or more days by 01/31/2011 from Alamo and Earn Triple Rapid Rewards ®credit. Save up to 40%, Reserve a car in the US or Canada using, Corporate ID 7015588

Hertz: Earn up to 5X the Credit, Plus save up to 25% on 1 or more days
Now through January 31, 2011, you will earn up to 5 times credit and save up to 25% on all rentals of 1 day or more. For reservations, click “Go”. The Corporate Discount Number (CDP#) and the Promotion Code are pre-populated in the booking widget. Or, visit southwest.com and enter CDP# “205418” in the Corporate Discount Number field and enter PC# “150732” in the Promotion Code field. Be sure to enter your Rapid Rewards account number at the time of reservation. (2X FOR 1 OR 2 DAYS, 3X FOR 3 DAYS, 4X FOR 4 DAYS, 5X FOR 5 DAYS)

Thrifty is offering a savings of 10%
From January 2 through February 10, 2011, save 10% on weekly rentals of compact, mid-size and full-size vehicles. NO CODE LISTED - I DON'T SEE HOW TO QUALIFY

Save 10% at Dollar
From January 2 through February 10, 2011, you can save 10% on all weekly rentals of a compact, mid-size and full-size vehicle. NO CODE LISTED - I DON'T SEE HOW TO QUALIFY