We are in the final stretch for the Mad Men Season 5 premiere. Don Draper and his coworkers and concubines return to AMC on March 25. When it begins, we will be fully immersed in the 1960s, where as we know youth started to take over and advertising was a big part of that. But before we get excited for the new story lines, let’s look back at some of the old plots and the lessons we learned from this interesting time for careers. Here are 10 career lessons from Mad Men.