"I love [the Airstream],” he says. “It’s like a womb. You can’t have clutter in there, so you break it down – very few clothes, very few things – and you realise how little you need."

Where is the smartest place you stayed? 'I lived at the Four Seasons Hotel George V for a month and a half when I was looking for somewhere to buy in Paris. I had my dog with me, which I don't think the manager was too happy about, but they allowed it if I used the staff elevator. Everything I wanted was taken care of and it was the easiest time I've had in a hotel.'