Months Away, But Still

This will be the first time in multiple years that I dress up for Halloween. It's sad. I know. I'm going to a Halloween party, and I can't go as Audrey Hepburn like I did last year, considering my costume was literally an outfit I wear regularly (black ankle-length pants and a black turtleneck -- I know, I'm cool.) So, this year I get to put in some real effort, which is great! Halloween has always been my favorite holiday, and I'm excited for the impending celebration.

But the question is: What should I dress up as? I've had a few ideas, but I'm having a hard time deciding. My first thought was Joan Holloway, from the show Mad Men, because there is no one more fabulous than Joanie. I had thought about going as Betty Draper, Don's beautiful yet tortured wife, but I'm thinking that would be less fun than being Joan. I had thought about going as a pin up girl, but I'd rather go as a character. It'd be more fun. Sookie Stackhouse is a top contender, primarily because I'd love to buy one of those Merlotte's t-shirts they sell on HBO.com. Jackie Kennedy would be neat, too, seeing as how I'm madly in love with Jack.

Any ideas? I could most certainly use some help!