I noticed that more and more people are picking up boxed lettuce and other greens. The convenience is just so attractive. The cost is a small deterrent against the time it will take to wash and trim the greens.
Let's think this through. Immature greens are picked before they mature, cut, washed, dried and packaged neatly for twice the cost of the mature greens, some of which you will trim and throw in the compost pile. I'm looking at the time it takes to get the boxed greens to my supermarket, versus the dirty greens that come to me straight from the farm.
Time is the issue. Not the time it takes you to trim and wash. But, the time it took for those greens to get to your table. Think about it. One day to harvest, one day to wash and trim, another to package, another to travel to your supermarket. Four days versus your five minutes to prepare the farm greens.
I'm not considering the fact that immature greens do not have the same vitamins and nutritional values as mature plants.
Do you want to save the planet and save money? Eliminate travel and packaging and eat stuff that comes to you directly from the local farmers.