From now until January 15, 2008, you can get $10 Costco Cash card if you use American Express Costco Card to pay wireless phone plan automatically. Essentially all the wireless phone service companies allow you to set up automatic payment use a credit card. SO if you have an American Express Costco Card, you can have free $10 which you can sue at Costco stores.

Requirements: Only The True Earnings Card from American Express and Costco, The True Earnings Business Card from American Express and Costco, American Express Costco Cash Rebate Card, American Express Costco Business Card cardmembers are eligible for this promotion. And you have to set up automatic payment for your wireless phone service. To enroll through this link. You can also call 800-794-1308 and mention the code 087890001.