A loaf of bread, a gallon of milk—and gasoline?Jacksonville-based Winn-Dixie has rolled out its new customer rewards card, which now carries the additional benefit of discounts on gasoline at selected area service stations.The “fuelperks!” program provides per-gallon discounts on gasoline, in addition to discounts on selected in-store items. The “fuelperks!’ discount is 5 cents per gallon for every $50 spent at Winn-Dixie using the card. The discounts can accumulate. If a shopper spends $500 in a month, they....