This year, for the first time in my life, I\u2019ll be hosting my family for the holidays. And to their deep disgruntlement, we\u2019ll be celebrating it without a Christmas tree. No, this isn\u2019t some principled stance against the yuletide-industrial complex or a personal front in the war on Christmas. I\u2019m just much more interested in an indoor evergreen interloper when its needles fall in someone else\u2019s home.