Use kitchen scraps to grow plants! Yes a lot of foods you disregard as not edible and/or trash can in fact grow into a plant and give you more fruits and vegetables! It is an alternative way of growing a vegetable garden then growing from seed or buying a
you could add some fish to your water reclamation tank for a small aquaponics system. Grow a few plants to feed the fish and this forms a closed system. There is no need to fertilize, the fish do it for you! Permaculture at its finest!