David Sedaris has a (great, of course) piece in the New Yorker, on smoking (and eventually quitting), and I love this bit profiling smokers by their brand allegiences:
Kools and Newports were for black people and lower-class whites. Camels were for procrastinators, those who wrote bad poetry, and those who put off writing bad poetry. Merits were for sex addicts, Salems for alcoholics, and Mores for people who considered themselves to be outrageous but really weren’t. One should never lend money to a Marlboro-menthol smoker, though you could usually count on a regular-Marlboro person to pay you back.
Can you guess what brand he smoked before reading his essay?