Most people we see at Whole Foods are buying stuff, so we don't think anyone goes there just to snack on the free samples in the aisles. But around the pineapple-mango salsa bowl, sometimes you wonder. It doesn't stick around long. The unlikely combination of fresh fruit and heat/spice, courtesy of chilies, cilantro and onion, is as refreshing as it is unusual. True, Tex-Mex purists might not even call this salsa. But it's such a brilliant departure from the traditional tomato-based varieties, and such a relief in the summer heat, it gets the best nod on originality alone.