We (my Dutch gf, Stoney and I) recently recycled an old chicken pen and house so that we may raise laying hens. We're still fighting with the raccoons and other predators for that right, but chicken production on a small scale can provide food in extreme economic conditions for many people. A few laying hens will keep you in eggs, and homegrown eggs provide more nutrition than the ones you get at the grocery. We'll add rabbits next when we get this stabilized. Besides the obvious food benefits, it's great to have them around. Organic gardening is our next project, and we've built a rather large compost heap to get started. Once the compost is in place, it gives us a place to recycle our consumable organic waste. So far, it's working and it doesn't take much labor at all to maintain, besides it's fun exercise, and you begin to feel a spiritual attachment to the land. All these are possible just about anywhere. Just scale up or down depending on your living situation.