A single-use plastic bag: the sin of any environmentalist. Many of us know the agonising pain of turning up at the supermarket, then realising you’ve left your reusable shopping bags at home. The next 10 minutes is a comedy show, seeing how many items you can stuff into your pockets, clutch in your arms, and even grip between your teeth. You will not let the team down by asking for a plastic bag. I do the same. Even though I know better: the data shows us that the occasional plastic carrier bag is not that big a deal.
