My neighborhood holds an annual street sale, during which many of the households hold a yard sale, then we all get together for a BBQ after. It's a great event, but we have found the haggling over prices to be a bit exhausting at times, and kinds of saps the fun out of things.
This year we tried something different.
We posted signs that said "Pay what you think is fair. All proceeds will be donated to Sunnybrook Hospital." We put all the books and things on a couple of tables, along with a big glass jar seeded with some money. And there were a few starburst signs that said "Thank you" and "Thank you for your generosity."
Take a second and predict what you think the resulting behavior would be under these circumstances. I'll wait while you do that.
Tomorrow's post will have the result.