Regrow Produce in water
Don't throw out the base of your next fresh romaine - regrow it!
Romaine lettuce is just one of 10 foods that regrow in water. Pretty remarkable, and It's super easy! Just place it in a small bowl or a cup, with about an inch of water, and place it on a window sill. change the water daily. you'll see new growth in a few days, and produce half a head of lettuce in a couple of weeks. Voila, Free Food!