The holidays are a magical time of year. Your heart is filled with joy, your home is filled with warmth, and your jeans fit a little more snugly (thanks to the large meals and abundance of cookies around every corner). Then, you end the holiday season with a big party and in a little cocktail dress. While the timing seems unfortunate, you can still slip into your frock with relative ease if you make some smart swaps in the next few days.