January 8, 2013 No Comments FREE Cheez-It at Xtra Mart Convenience Stores “Like” Xtra Mart Convenience Stores on Facebook and get a FREE 3 oz Cheez-It. Valid 1/11/13 – 1/24/13. Locations. FREE Cheez-It at Xtra Mart Convenience Stores – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.