Shake Shack jumps into loyalty game with $1 sodas amid economic uncertainty

For the first time, Shake Shack, the fast-casual burger chain, is getting into the loyalty game to ramp up business with economic uncertainty looming.  Starting Wednesday, the burger chain, founded by renowned New York City restaurateur Danny Meyer, said customers will be able to get any size soft drink for $1 if they order through the Shake Shack App or its website, shakeshack.com. In June, customers ordering a burger or BBQ sandwich at least twice within a certain period — online or through the company's ...