I like good news, coffee houses, and Good magazine. This story has all three.
At the Corner Perk, a coffee house in Bluffton, SC, one anonymous customer started leaving money to pay for other people's drinks and food. This custom caught on, and now many people do it.
As psychologist Jonathan Haidt has so interestingly demonstrated, seeing other people do good things fills most people with a desire to do good things, too.