People are willing to show support for social causes – provided they don't have to do much - and brands are finding new ways to tap into the strength of the herd. By re-engineering menial actions – from buying body lotion to having sex – there are ways to reward everyone.

Americans buy five times as many clothes as they did in 1980, with 10.5 million tons shipped off to landfills annually. While brands like Patagonia are making coats that last a lifetime, Twice is helping people monetise decluttering. But can second-hand shopping match the buzz of fast fashion?

Vending machines have long populated railway concourses and platforms. Now, some of Paris's busiest stations – from La Defense to Montparnasse – have installed a new-concept version that consumes rather than dispenses. Will they get Paris recycling?

After a day's shopping, people often return home and make space for their new purchases by throwing away things they haven’t worn in ages. In response, a Swedish fashion label has created shopping bags that once turned inside out become an envelope to send old clothes to charity.