We put in our garden this week! It's not anything impressive or complicated--just a little flower bed that we put a frame around dumped dirt into. Our tiny yard is shared with our neighbors, so we can't exactly just do what we want with it and fix it later. The only piece of dirt that is really "ours" is this 8 inch by 9 foot rocky flower bed.
I would have loved to do a full garden, but between the available "land" and my lack of energy during pregnancy, we decided it would be best to do just a salad garden. After exploring the many ideas out there for container gardening--most of which were expensive or ugly--we decide that putting a frame around the flower bed would be best. Wil found some scrap wood at Lowes (they had been frames for riding lawn mower boxes) and so was able to get all the wood for the frame for under $6. That number was much more to my liking!
He drilled some 3/8 inch holes (I think) and put stakes through them straight into the ground to hold everything in place. It works like a charm (so far)! We thought about going a bit deeper, but decided to see if what we have will work...so our raised flower bed is only about 6 inches deep. This is all an experiment anyways, so, yeah, might as well be adventerous!