I went to the laundromat last night after work. They've got Wi-Fi now (good!); you have to hunt down an attendant for the password (bad!); there are no power outlets so you can always be chargin' (ugly!).
A guy waiting for his clothes to dry had an Ovation acoustic guitar with him. I saw him patting his pockets down in search of a pick. I remembered seeing one at the bottom of my laundry basket, so I rooted around, found it and handed it to him. He thanked me and began to play.
I had a shaker/thunderstick in my car's trunk (because that's where all my percussion instruments have been hiding out since this summer's CampCamps), so I went and got it and played along. He was kind enough to pass the guitar off after a little while.
We made 40 cents. That would've covered seven minutes' worth of dryer time. We gave it to a man who'd walked in and was asking people for change.