I’ve long been of the view that if we want to change people’s behaviour, we have to make it simpler than sticking with their old habits. Kerb-side collections have increased recycling rates because you have to trip over the box on your way out of the house and no longer have to drive your empties to a facility in Sainsburys car park. If standby buttons were designed out of some appliances and gadgets, we’d be more likely to simply switch stuff off. Making a