Fox8.com: Get a free shake this weekend at Wayback Burgers
CHESHIRE, Conn. (WJW) — To celebrate the first Saturday of summer, you can get a cool treat for free at a local burger joint. Wayback Burgers‘ Free Shake Day is set for Saturday, June 24, when customers can come in to get one 12-ounce vanilla milkshake for free — and they don’t even have to buy anything. Wayback Burgers…