How do you make sure a whirlwind trip round the world in just a week doesn’t wear you out and affect your productivity? Things went surprisingly well for me last week, as I flew from Washington to Munich to Paris to Bangkok to Islamabad, back to Bangkok, on to Seoul and back to Washington, so I thought I’d share the experience.

The first thing I have to say is that I don’t drink coffee or take sleeping pills. My only medicine when it comes to air travel is securing the best comfort and luxury I can — I need my flat beds, gourmet meals, lounges with showers, and sometimes even chauffeur-driven cars to connecting flights. I certainly can’t pay for them, but we’ll come to that momentarily…