I found it!

The very first thing that happened on the Day of the Garage Sale was that I strode out into the sunlight, Tilley hat on, ready to protect me from the rigors of 8 hours of sunlight, and it blew the fuck off my head and was *instantly* gone! I looked around for it as best I could with people already showing up early, but I never found it that day, and was worried it was lost forever. However, a brief look in the back yard today found it for me, which means it's time to pack it up and send it in to get fixed or replaced. Tilley's have a lifetime warranty on workmanship and materials, and mine has a messed-up brim wire that makes it look bad.

It would have been a little hard to send it in to get fixed without actually, say, *having* it, though.