Mad Men 's final episode of the year aired this week, and it was both awesome and puzzling. SPOILER ALERT — Bertram Cooper, one of the agency's founders, passes away, leaving Don's future with the agency in question. The last scene features the many secretaries and the now-deceased Bert serenading Don with a version of "The Best Things in Life Are Free." I have to admit, it's pretty great. Even Don tears up as Bert shuts his office door for the final time. Now, time to speculate about what this means for the last half of season seven. Does the song title mean Don will be refocusing his life outside of the office, especially considering he and Megan pretty much broke up, or is that too obvious?