Exchange shoppers can save 10 percent with coupon Published Dec. 15, 2014 By Julie Mitchell Army & Air Force Exchange Service Public Affairs EDWARDS AIR FORCE BASE, Calif. -- Military shoppers can find a winter wonderland of savings at the Army & Air Force Exchange Service simply by shopping Dec. 21 and 22. When shoppers make a purchase those two days, they will receive a coupon to save 10 percent off from Dec. 26 through Jan. 5, with a maximum discount of $200. The coupon is available at the registers while quantities last. "The holidays, while joyous, can also be expensive," said Air Force Chief Master Sgt. Sean Applegate. "Saving up to $200 can come in handy for military shoppers." The coupon is valid in-store or at www.shopmyexchange.com.