Mad Men's season five finale aired last night, and for all of us Mad Men fangirls and fanboys, that can only mean one thing: Total withdrawal symptoms are not far off. Come next Sunday night, we're going to be craving our weekly dose of Don Draper, sure, but also of all the gorgeous or sometimes downright wacky period fashion. This season was replete with what costumer Janie Bryant calls Joan's signature brightly colored "1950s wiggle dresses," Peggy coming into her own with some bold numbers, Betty's drab or conservative choices linked to her weight gain, and the shining star: Megan, in all her mod, precisely of-the-moment glory. Sigh.

In honor of the finale, here's the grooviest and cringe-worthiest looks from season five ...

Which costume was your most and least favorite this season?

Image via AMC