Shoppers can score a share of $5,000 with Exchange back-to-school sweepstakes Published July 21, 2015 By Army & Air Force Exchange Service Public Affairs DALLAS -- Military shoppers can get a head start on their back-to-school shopping list with $5,000 in prizes from the Army & Air Force Exchange Service, Hershey and Mars. From July 17 to Aug. 20, authorized shoppers worldwide can enter for a chance to win one of 10 $500 Exchange gift cards. "Back to school shopping can be stressful for both parents and students," said Army Col. Karen Fleming, the Exchange's Logistics deputy director. "These prizes should help start the school year off right." Shoppers can login to www.shopmyexchange.com/sweepstakes to enter. No purchase is necessary and entrants do not need to be present to win. The Hershey and Mars Back to School Sweepstakes prize drawings will take place on or about Sept. 4.