Thanks @apolymask. It would be tough making the transition, especially as we are so used to certain comforts. To convert to solar panels, water tanks, and so on is also costly. I have a friend who actually went right back to basics - he and his wife and 2 children lived in a shack on a piece of land which he rented, pumped water from a stream, made a fire for heating water and cooking, used gas lamps and candles, and grew the most amazing veggies which he was able to sell. He also grew weed hidden amongst the bush and this provided some income as well although it is illegal here. Unfortunately he couldn't always pay the monthly rent and had to move off the land.
I wish I knew the answer!