New Orleans bills its Mardi Gras as the Greatest Free Show on Earth. As the first parades get set to march through the streets of the Big Easy this weekend, is it too late to make travel plans for this year's edition?

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New Orleans bills its Mardi Gras as the Greatest Free Show on Earth. As the first parades get set to march through the streets of the Big Easy this weekend, is it too late to make travel plans for this year's edition?