Polo Blue Cologne, the fragrance for men by Ralph Lauren, was a big part of my freshman year experience at Stanford University. That year, I lived in a double in between two pairs of males and across the hall from another pair. I categorized them as the Computer Science boys, the Research boys, and the Country Club boys. They were all brilliant in their own way (especially the one neighbor who practiced intense substance abuse and killed me on every exam – so unfair). Because I recognized people by their personal smell, I harbored a distinct olfactory memory of each of them.