The difference between good design and poor design is in the eye of the beholder. For example, let's say you want a staircase in your newly built home. How hard could that be to execute? It's probably pretty straightforward, unless you want something fancy. Maybe you're a wealthy multi-millionaire with money to burn and a desire to impress your artsy friends. Then perhaps you give your designers some artistic leeway. It's shocking how many interestingly designed staircases are out there in the…