Considering that when we checked my bag coming back from the UK, it was 100 g short of the 23 kg weight limit, I'm feeling slightly smug about having planned as well as I did. Of course, had the battery run down early, I could have bought a blade razor and dealt with the resultant carnage on my you'd-be-surprised-how-sensitive-it-is skin as best I could, so it wasn't a huge risk, but still.
Also, this trip showed the value of that piece of luggage Lisa bought me last year for my birthday. We had considered at the time the next-largest-size piece, but it's clear that we can't go any larger than what we did get because I'd simply overload it.
In a few minutes, after I have some coffee, we're checking out of the hotel and heading out into the 30°C heat to pick some boxes out of my locker, then embark on the final lap home and an end to our long Summer of Convention Travel by planes, trains, and automobiles.