direct to your inboxWhether you shop at Asda, Tesco, Lidl, Aldi, Morrisons, Sainsbury's or Waitrose, chances are, you'll look for the best deals while you're there.But a new study has shown that one supermarket in the UK is cheaper than the others.The report, based on a trolley of 45 popular products including Hovis bread, Knorr stock cubes and free-range eggs in eight major supermarkets, looked at the cheapest - and priciest supermarkets last year.It calculated the average price of each item