It really should go without saying but Champagne is one of the biggest cost drivers for New Year's parties. While you might think your friends will be impressed by Dom Perignon, you're forgetting that the subtleties of such a fine wine are lost on the vast majority of palates. Also, after a few sips that subtlety is all but gone for almost everyone. Do not spend $100 a bottle on Champers -- instead spend between $15-$20 on a sparkling wine or Prosecco. The Niagara region is actually producing some pretty good fizzy plonk so buy it up and save!