Trend forecaster James Wallman reveals the world's growing sense of stuffocation – and how we can move away from it. We have more stuff than we could ever need - clothes we don't wear, kit we don't use, and toys we don't play with. But having everything we thought we wanted isn't making us happier. It's bad for the planet. It's cluttering up our homes. It's making us feel 'stuffocated' and stressed - and it might even be killing us.