Marc Jacobs launched his eponymous makeup collection this past Friday, and much of it was inspired by lacquer. The designer has said countless times that his favorite color is "shiny" and he told the Wall Street Journal recently, "I just find shiny surfaces to be very mesmerizing." And there isn't anything shinier than lip gloss, right? Jacobs offers 12 lip glosses in his new collection, and when one of them hit our desks just prior to the launch I had a very heated discussion with a colleague. "Who the hell wears lip gloss anyway?" she asked rhetorically. Ah, a complicated issue, to be sure. According to consumer market research group NPD, lip gloss sales have been on the decline since 2010. Overall, lipstick sold about twice as much as lip gloss. So who the hell actually is wearing lip gloss?