The Subway restaurant chain is celebrating its birthday in September with a month of daily giveaway prizes. The SUBprize Party offers the chance to win four 2013 Jeep Compass vehicles, 400 Kinect for Xbox 360 prize packs, 72 Florida beach getaways from Visit St. Petersburg/Clearwater, and Ultimate RadioShack Prize Packs including a laptop, tablet, e-reader, camera, computer speakers, wireless keyboard, printer and headphones. To participate, pick up specially marked 30 oz. promotional cups or Doritos chips with codes that can be redeemed to win Grand SUBprizes every day. Subway also is offering an expanded menu of value meals and $5 Footlong Faves for September.