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Over a several-year period, the U.S. per capita consumption of Romaine lettuce increased 162%, to the point now where lettuce consumption is at a record high. Why? Largely because we are too damn lazy to even wash our own lettuce anymore.

The convenience of pre-washed, bagged lettuce outweighs the cost. At least in my grocery store, a bag of lettuce is easily three times more expensive than a raw head. Yet we buy the bag anyway, because you can just grab a handful and throw it on your plate. (Source)