Toward the end of the recent trip, I noticed that my belt was getting a tad loose - this despite all the Southern restaurant meals and a lack of regular exercise.
On returning home, I found that I had indeed lost a fair bit of weight.
As of this morning, I've lost just about ten pounds since a month ago. I've been sticking to two travel-related changes: water with meals instead of milk (so milk consumption goes from 2-3 gallons/week to just a slosh over the breakfast cereal), and a fairly early dinner with no snacking afterward.
At this rate, I'll be back to my early-1990s weight by Halloween, and trying to stabilize there.
We shall see. It's looking like time to dig through the archives in search of smaller pants.