I've never been to Everything Wine, a retail wine superstore in British Columbia, but this blog post from Fast Company is worth a read, as is this MarketingProfs post which directed me to the FC post and is better organized.
Three years ago, after retiring as President of Diageo, Paul purchased two small retail wine stores, and turned them two into wine super stores. He’s now planning on opening a third store at the end of July.
If you have a tasting room at your winery, it's well worth a read.
In the comments on the FC post, one person places "value the customer" as the primary rule. Another embraces "value the employee." What do you think?