Sure, cocktail hour happens every day of the week year round. But this time of year, your favorite day-to-night look might not always do the trick. The holidays ring in something special for style lovers; it's a time to let out your love for all that glitters and flashes under the light, a time to feel like your look is as effervescent as the champagne in your glass. If you like to dress up in pretty frocks, this is the slideshow for you. Get excited about your next holiday fete, make a place in your closet for a new edition, and celebrate 2012 in sartorial glory.