Am I intentionally trying to see what interesting queries my Google Analytics will show me after I've got a post with this title? Perhaps. Calling save-the-dates STDs, as Liz has, tickles the juvenile part of my sense of humor and helps reduce any potential stress related to a mere paper good.
(customize and download from The Wedding Chicks)
Anyway, I think these Mad Men themed save-the-dates are a clever design. We're not having quite such a strong theme in ours but props to this couple for coming up with something cool and then sharing it with the Internets.