OFFICE DEPOT: People who shop at Office Depot through Sept. 5 will receive a unique code on their register receipt that they can enter online to reveal if they are an instant winner. Each day during the “Go Back Smarter Instant Win Game”, 50 general customers will win $100 in Office Depot gift cards and 10 teachers will win $500 worth of gift cards.

OFFICE DEPOT: teaming up with 3M and NASCAR stars Tony Stewart, driver of the No. 14 Office Depot/Old Spice Chevrolet, and Greg Biffle, driver of the No. 16 3M Ford, to put a new twist on its sixth annual “Official Small Business of NASCAR, Courtesy of Office Depot” sweepstakes. This year, two small business owners will be randomly selected as finalists in the sweepstakes, with Stewart and Biffle going head-to-head on the race track to determine their fate during the nationally televised AAA 400 NASCAR Sprint Cup Series race at Dover International Speedway Sept. 26. Stewart will carry the name or logo of one small business finalist on his No. 14 Office Depot/Old Spice Chevrolet during the race, while Biffle will feature the name or logo of a second small business finalist on his No. 16 3M Ford. The small business that appears on the highest-finishing driver’s car will be named the “Official Small Business of NASCAR, Courtesy of Office Depot.” Additionally, if Stewart or Biffle wins the race, the small business featured on the winning car will take home $1 million.