Don't bring grandpa, carry on all luggage, keep track of your kid, and other advice from Little Miss Sunshine, Meet the Parents, and more

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Wednesday is the year's biggest travel day in America, as people head home to celebrate Thanksgiving. Last year we mined classic movies to come up with 17 tips for a smooth journey home—and this year we've added a few more ideas from films that have come out since we published the last list:

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