Remember the Elmo? Apparently, kids aren't the only ones clamoring to own Sesame Street T-shirts, swimsuits and the like. Does this mean Barney adultwear is next? . . . oh soy! As word spreads of its reported ability to ward off everything from heart disease to cancer, the mighty soybean is gaining popularity among the health-conscious of the world. No average legume this, the soy-bean is also being touted as a key ingredient in--we kid you not--cleaning products.