Want to Keep Diners Coming Back? Offer a Loyalty Program.

The Salty, a donut chain that started as Amanda Pizarro’s college project, has expanded in nine years to 14 stores in Florida, Georgia, North Carolina, and Texas. This year, it will add 10 to 12 new locations. That’s fast growth for a family-owned business. A key to its success? Loyalty. “Nearly 20 percent of guests are in our loyalty program,” says chief marketing officer and Amanda’s brother, Danny Pizarro. “They visit...