In a previous life I was a personal assistant and part of my job was going to all the Whole Foods around NYC and finding the freshest lemons, fuji apples, and chickpea masala. Needless to say I would spend my lunchtime at the various local Whole Foods stores and fill up on all the delicious samples since I was strapped for cash.
Recently I got an inside tip that all the Whole Foods stores in the region designate Wednesday evenings (5-7pm) for food demos. It's great because during that time customers are treated to a free sampling in every department! Yum.