And all had gone well, to the extent that I arrived more than four hours before my flight, having stopped at Westfield Stratford to buy a hat, leaving me time to have lunch (and perhaps a glass of something sparkling) in the British Airways lounge. I was settled and relaxed.
That is, I was, until 3.30, when there was a flurry of activity and the announcement that the 4.40 to Stockholm had been cancelled for reasons unknown. It suddenly became a bit chaotic, as we were first directed towards a gate and then advised to leave the airport.
So, what was a bureaucrat to do?
The first priority was to rebook my flight but, with thousands of people trying the same thing, and the British Airways app rather out of commission, I rang their call centre, taking advantage of my Silver status. They weren't able to get me on the evening flight, but there was a seat on the (horribly early) 7.05 the next morning.
Next priority, a room for the night. The Intercontinental Hotels Group app came up with a hotel within a short bus ride of Terminal 5 at a rate I was willing to pay, so I could then inform the hotel in Stockholm that I would be a day late.
And finally, clothes, given that my luggage was trapped somewhere in Terminal 5's baggage handling system. A quick trip to Richmond and a raid of Marks & Spencer did the trick before dinner and a gentle bus ride or two to my hotel.
I awoke early the next morning, far too early, and set off to the airport for attempt number 2. As advised, I called in at the assistance desk, arranged for my luggage to be linked to the new flight and checked in. Back to the lounge for breakfast and a glass of consolatory prosecco, and fingers crossed.
My expectations were not great but, with some good fortune, I arrived in Stockholm pretty much on time, as did my luggage, giving me time to get to my hotel and arrive at the Waterfront Congress Centre just in time for our first delegation meeting.
It was time to get to work...