In efforts to increase its return on investment, Family Dollar is opening 350 stores this year, down from the 500 the company has opened annually over the past few years. Eventually, it is management's goal to return to 8% to 10% growth after the firm is up to speed, Levine says.

"We believe that there's tremendous opportunity for growth," he says. Family Dollar has not yet started its push into California, and urban markets only represent 1,400 of the company's total stores. Urban stores, which the Family Dollar introduced last year, have higher volumes and make more money than suburban locations, Levine says, but are more difficult to manage because of the increased number of consumers and employees.

Family Dollar is also adding more coolers in its stores in efforts to drive perishable-food sales in its stores. The retailer has coolers in 3,100 of its units and plans to have them in 3,500 locations by the end of the year.