By Levi Winchester Supermarkets including Tesco, Asda, Morrisons and Sainsbury’s have all introduced new changes to stores over the last few weeks. This includes tweaks to loyalty schemes, new charges for items that used to be free, and lower prices for shoppers. We round up all the changes for each supermarket to see how they affect you. Tesco Tesco has introduced several new measures recently. The first big change comes after Tesco lost its appeal against a ruling that it infringed Lidl over the use of its yellow circle on a blue background for its Clubcard Prices promotions. Tesco was told …