An icy chill grips the air... frost is on the windshield, and Halloween is over.  This can only mean one thing - it's time to decorate for Christmas, of course.  Christmas, the holiday season, and the winter solstice are all nearly upon us, so it is definitely time to deck the halls.  These days, however, our "halls" often include high, vaulted or cathedral ceilings.  While this feature of modern homes makes rooms feel extra large and open, ultra-high ceilings can pose challenges when it comes to holiday decorating.  On the bright side, all that extra space provides plenty of canvas to project your greatest Christmas and winter wonderland fantasies.  Let's…