Here's a nice brief via thenewyorktimes that delves into the theory that subliminal messaging may have a real, perhaps quantifiable, impact on consumer buying habits. We all have a suspicion that the logos and brand messaging we see emblazoned on other peoples clothing may stick with us and affect our purchasing decisions. "Incidental brand-consumer encounters” is the description given to this phenomenon in a forthcoming article and study developed by a group from the University of Maryland. According to their research, this sort of soft-marketing is quite effective. Of course the amount of time and energy it takes to build up enough brand equity for this effect to take place is no walk in the park.