It's the end of the year, which means we'll start looking forward to 2012 soon. But first, we want to look back — way back — at our best nostalgic posts of the year. Whether we were reminiscing about growing up in the '80s and '90s or shaking our heads at sexist (and, at times, humorous) vintage advertising, this year has been full of fun and educational throwbacks. Even the TV shows and movies have been a blast from the past. So in case you missed any of our great nostalgic content, click on!