One of the must-go destinations during this coronavirus outbreak has been the grocery store.  Supermarket chains statewide will implement more rules to separate shoppers in order to promote social distancing.  The Connecticut Food Association, an industry group that promotes retail grocers and their suppliers, says members including Big Y, ShopRite and Stop & Shop have agreed to halve the maximum occupancy of their stores and ask families to send only one representative to do the household shopping.  Danbury Mayor Mark Boughton says Trader Joe's has limited the number of people inside at one time and Stew Leonard's has put up barriers between cashiers and customers.  He's also called the smaller corner stores asking them to also reduce overcrowding.