I'm not too sure but I think that the Bothell Starbucks across from Home Depot might be a training store.  The baristas behind the counter always seem so cheerful and egger to please.  Even during those rush hour moments.  I don't know how they do it since I can't even remember how to ask for what I always order.  They are friendly and polite and get the order right even if I say it wrong.  This is the model for doing the customer service thing right.
                        
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