Zingerman's is this amazing deli in Ann Arbor, Michigan that expanded to several local fine food stores and does $13 million a year in revenues. They've also written a book about customer service and offered classes on how to run a good business. Their most recent email newsletter offered up a succinct message that resonated with me:
If you want staff to give great service, give great service to staff.
It's a good reminder for leaders whether you run a business, school, club, or class.