Through June 12, get FREE fries at Shake Shack just by showing your vaccination card or NY State Excelsior Pass. Shake Shack has teamed up with the NYC Mayor's Office to help get more New Yorkers to vaccinated. The deal is valid in NYC only, for an order of Crinkle Cut Fries, with the purchase of a burger or chicken sandwich. The popular NYC-based chain is just the … [Read more...] about Free Fries at Shake Shack for Vaccinated Customers