Consumers’ plastic bag usage is largely influenced by supermarket policy, according to a survey of Coles and ALDI stores in Manly. Currently, there is no Coles policy that dictates that cashiers should ask customers if they would like a bag for three items or less. But in contrast, ALDI stores implement a 15-cent fee for each plastic bag and actively encourages customers to bring their own bags or boxes from home. Olivia Pickering and Bonnie Rando Leys report. […]