We’re supposed to come back from holiday feeling refreshed and ready to to go, but all too often, we come back to work feeling exhausted. It’s almost as if 10 days of cocktails, late nights, unfamiliar beds and little exercise aren’t conducive to relaxation. But if you don’t want to ditch the margaritas, what can you pack in your hand luggage to up your wellness so that you return to work feeling as calm and happy as possible? That’s the question we put to 10 top fitness and wellbeing experts.