Okay just in case hard times is coming our way, growing our own food would seem like the best way to feed ourselves. But if we don't have any money to buy gasoline (if there will still be any gas to buy) to use our tillers and we don't have draft horses, should we use raised bed gardening techniques? Should we build raised beds using railroad ties approximately 2'w X 2'high X ?'long. Would these be much easier to till up by hand tools and better able to keep weed free? Your advice is much appreciated. Thankyou.