Guardian: Tesco is to encourage customers to discard unwanted and excessive packaging near the tills, in an experiment along the lines of a similar "take-back" scheme in Germany. The supermarket chain has already cut back on what it regards as "wasteful" packaging, such as bulky dog food bags and unnecessary plastic wrapping on food. A regional trial will now try to find out which kinds of packaging consumers are prepared to do without. Common customer gripes include the amount of plastic, …