If they're so inclined, shoppers can squeal down the aisle at these supermarkets. Piggly Wiggly Midwest operates a leading grocery store chain with about 115 locations in Wisconsin and northern Illinois under the Piggly Wiggly and Butera banners. About 20 stores are company-owned and -operated while the rest are franchised; Piggly Wiggly Midwest supplies all of its stores from two distribution...