There are a ton of great vintage spots in Seattle, but this spot in the Georgetown neighborhood may be the quirkiest. It's a trailer park AND a flea market. There's only a few shops, but the prices are good and there are treasures to be found. I picked up hobnail salt and pepper shakers for $5. Definitely worth the trek, and hey, if you're lucky you'll get invited to the kid's birthday bbq that seem to be a regular occurrence.
Georgetown Trailer Park Flea Market