Arby’s is celebrating its 50th birthday and wants to give you a gift. On Wednesday, July 23rd, 2014, get a free 12 oz. Jamocha Shake. Print out this coupon and bring it with you. One per customer. By the way, although the coupon says it’s for a Jamocha shake, what I’m hearing from people in the know is that you can choose any flavor, which also include vanilla and chocolate. Looking for more deals? Here are 8 more food freebies and deals this week.