No, you are not seeing double. The new advertisements from Delta and American Express are now offering you double miles. Starting this week, cardholders will be able to earn two SkyMiles for every eligible dollar charged to the Delta/AmEx card for purchases at supermarkets, gas stations, drugstores, home improvement stores, the U.S.  Postal Service, wireless phone bills and Delta Air Lines. Cardholders will continue to earn one SkyMile for every eligible dollar charged for other purchases. AmEx and Delta have also added some special promotions to kick-off the enhanced cards. The first 10,000 consumers to apply for the new Delta SkyMiles Credit Card online, will be eligible to have their frequent flyer miles matched from any one airline, up to 50,000 miles, and deposited in their SkyMiles account.  Delivery of miles is contingent on application approval and meeting a minimum spending requirement of $10,000 within six months of card membership. In addition, all new cardholders, who apply by Dec.  31, will have the opportunity to double their traditional welcome bonus mileage. For example Gold Delta SkyMiles cardholders will receive a welcome bonus of 10,000 Delta SkyMiles upon their first purchase, which can double to 20,000 if $10,000 is spent in the first six months. The annual fees for the consumer cards are Delta SkyMiles Classic $55, Gold $85, Platinum $135. For more information visit www.americanexpress .com/deltadoublemiles.