Just recently I was facing a problem that is wonderfully addressed in a blog from Popular Wood Working Magazine.
Adjust your work to a comfortable height.
This blog is dealing with the question of what is the perfect height for a work bench. I found that my perfect height recently changed and the KREG Klamp table was one solution.
The bench boxes are also a very good idea and one that I am going to add to my list of things to do in my shop. A couple of boxes to raise things up should save my back and increase my wood working pleasure.