Having work done on your home can get expensive... fast! It's no different with your landscape... retaining walls, paver patios, custom lighting... all those things can add up to more than people were expecting. It begs to reason then that when the opportunity to save a few dollars comes along by hiring an unlicensed contractor, or some day laborers from your local nursery people are going to jump all over it. I mean in this new economy "saving money" is the new black right?