Once the Rockefeller Center tree is lit - the holiday partying frenzy begins.  Sure we just had Halloween and Thanksgiving, but now holiday parties and family parties begin in earnest.  That means yule logs, potato latkes, boxed chocolates, candy canes and the many side dishes that permeate these last weeks of the year.  In NY, the street smells of cooking shwarma and hot pretzels and coated nuts smell even more delicious in the crisp cold air.  How is a person supposed to survive the...