Turn off your email, get the packing right – and never, ever play Monopoly: 15 tips for a happy holiday

Here’s how to master the art of holidaying, whoever you’re going away with

“All mammals get aggressive when crowded,” says clinical psychologist Linda Blair. “Save money on long-distance travel and invest instead in generously sized accommodation where you won’t be on top of each other. Everyone needs a place to retreat to – it’s how you keep stress levels down.”