11 Best Holiday Movies (and Their Subtle Green Messages)

"National Lampoon's Christmas Vacation"

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When it comes to Christmas, Clark Griswold doesn't do anything halfway -- and that includes their lights.

With "250 strands of lights, 100 individual bulbs per strand, for a grand total of 25,000 lights" adorning the outside of their house, the Griswolds are an energy-conservation nightmare (especially since they're decorating pre-LED).

Video: YouTube

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