For 14 fun and pretty thrilling years, I was the editor-in-chief of Cosmopolitan magazine — and, yes, that means I was the one responsible for wicked coverlines like “Mattress Moves So Hot His Thighs Will Burst into Flames.” But it also means I had close-up view of the modern consumer landscape. And in the year since I left the magazine, I’ve had a chance to distill some of the the strategies I used to make Cosmo number one on the newsstand (and keep it there).