I've got a friend who has a growing business making blended green drinks and selling them to health food junkies, hippies, people on cleanses, etc.  The drinks are mainly based on romaine lettuce.  Since my system runs cold water for my trout, I am mostly growing leafy greens and lots of romaine.  So I decided to offer to sell her some of my romaine this winter to put in her drinks.  She likes th…