I dreamt that due to FTC intervention, the laundromat started to let people into the secret place in back where all of the missing socks/underwear/shirts/relatives/etc. went. It was a huge, serpentine conveyor belt which went on forever in all directions, slowly but deliberately carrying a six-foot-deep pile of missing laundry. I was able to find a few of my missing pairs of socks pretty quickly. Strangely, everyone could tell what was theirs, and the honor system worked pretty well.
I also found some of my underwear, but I decided it’d be better to be safe than sorry and left it behind.