Last night I saw a Subaru traveling down Northside Drive in Atlanta with a full array of blinking Christmas lights entwined in the roof rack. And I suspect I’ll be seeing plenty of Christmas trees tied to the roofs of cars and SUVs. But it wasn’t always so. Before daily car use became a requirement of full citizenship in most parts of the country, folks had to figure out other means for transporting Christmas trees and other bulky items. Some were simple, as illustrated in the 1951 greeting card illustration on the right, posted on Filckr by illtakeyourphoto!