The Car Boot used to run from King Edwards High School during the winter, indoor and outdoor, for many years.
I've always been a bit disappointed with Stafford Car Boot. Gone a few times, and never opened my wallet as there didn't seem to be much there. My usual trip is to Cannock Car Boot, which is much bigger.
It hasn't overwintered at King Ed's for two or three years now. Boot sales in general aren't what they were up to a few years ago, but there's always the possibility of a gem out there. If I thought that people might be interested then I would start a "What's your best boot sale purchase?" thread. I might do it anyway.