It’s funny, all the parallels that everyone draws. Peggy and Don are mirrors. Peggy and Betty are two sides of women. So are Peggy and Joan. Peggy and Pete, the examples of youth. Most of the ones I hear involve Peggy. Her character is a walking Rorshach test.

So anyway. In Hobo Code, Don notices Peggy’s ripped collar after her couchcapade with Campbell.

“I caught it on something. I might start keeping a spare.”

Like Don. And really, he’s keeping spares for pretty much the same reason.