We're willing to wager that more than half of your cocktail dresses are sleeveless, ready for warm weather, and best shown off without a topper . . . leading to a problem during the holiday party circuit. As you start your search for the perfect long-sleeved dress to wear, well, everywhere formal for the next few months, let these stylish stars inspire you. Taylor Swift went sexy in a formfitting wine number just last night, while Karlie Kloss and Hilary Rhoda both went with nude-and-black lace numbers (Karlie in Roland Mouret Pre-Fall). Olivia Palermo was the sparkliest of our foursome, in a sequin-covered style that fell to right under the knee. The one thing they've got in common? They all remind us that it's more than possible to rock a sexy, Winter-ready dress that doesn't expose too much skin.