The California Milk Processors are experimenting with a new scent strip technology that lets them bring the scent of freshly-baked chocolate chip cookies into bus shelters, apparently in the hope that smelling the cookies will trigger a thirst for milk. If this works out, I think we can look anticipate more companies jumping on the fragrance bandwagon...which, BTW is already filling up with car dealerships, hotel chains and retail stores who've discovered how to manipulate us through our sense of smell.
Personally, I'm all for it. Chocolate chip cookies beat piss and B.O. any day of the week.