All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.
Potato Pot: The most environmentally friendly potatoes are grown this way. in Japan ! Make a potato pot by cutting out the sides of a plant pot and putting it inside another one - this makes it easier to lift the plants out for harvesting.