Today is Free Shake Day at Jake’s Wayback Burgers. Stop by anytime throughout the day for a free black and white milkshake. If you’re lucky, you might also get “Wayback Shake Bucks,” which are good for $5 dollars off any purchase, (valid from June 17 to June 24). There are 12 Connecticut locations, including West Hartford, East Windsor and Rocky Hill. Offer is good throughout the day, while supplies last, one per customer. Information: www.waybackburgers.com.