Supermarkets have introduced drastic new measures to stop too many people shopping at once amid the coronavirus pandemic.Shops across the country are operating a "one in, one out" policy and have security guards manning the doors.Some retail giants have even stopped families from shopping together, including Waitrose which banned couples in stores this week.To combat stockpiling and panic-buying, supermarkets have restricted certain items such as toilet paper and long-life milk, Birmingham Live reports.Amid the raft of new measures, a trip to the shops may prove stressful for some.And with the virus still spreading rapidly, many may feel nervous going to the shops in case they spread it to vulnerable or elderly people in their household.So,