SHOPRITE and Checkers have launched new, stronger plastic bags, which will cost R3 each. But, every time you re-use the bag, you’ll get 50c off your shopping.The new bag, made from 100% recycled and recyclable plastic, is thicker than standard bags (70 microns compared to 24 microns) and reportedly should last for many shopping trips.According to Shoprite, only five percent of people re-use their shopping bags worldwide and two million bags are thrown away every minute. The company said it is hoping to change consumer behaviour by rewarding customers for re-using bags.Woolworths is also introducing re-usable plastic bags from November and, earlier this year, Pick n Pay announced that it will introduce South Africa’s first compostable supermarket bags. The bags are made of vegetable matter, such as maize and potato starch, and will break down after three to six months, depending on conditions. Last year, the Shoprite Group sold 700 million plastic bags. The company was the first to introduce recycled and recyclable plastic shopping bags in South Africa.— Business Insider SA.