What’s old is new again.  Sweater vests are everywhere this season, and there are so many unique ways to rock the popular fall trend.  I’m not going to lie.  I was secretly pumped that I could channel my inner Cher Horowitz (à la Clueless).  I was a little young to rock some of the styles from the movie in the 1990s, so I’m pretty pumped.  I’m all about a preppy sweater vest revival — I’m in heaven! There are so many…