NEW YORK – SEPTEMBER 17: A co-op shopper looks over produce at the Park Slope Food Coop on September 17, 2010 in the Brooklyn borough of New York City. The Park Slope Food Coop, where shoppers must work periodic shifts at the grocery store in order to buy there. The Coop has been named the largest consumer-owned single-store Cooperative by sales in the U.S., tallying $39.4 million during its last fiscal year. (Photo by Chris Hondros/Getty Images)
