Another terrific post by Melissa over at The Non-Designer – Don’t Try This at Home

This morning I woke up with a pretty bad toothache. Instead of calling the dentist, which I felt was a waste of my time and my money, I decided to take care of the predicament myself. I grabbed a pencil, a pair of pliers, some duct tape and proceeded to remove the problem tooth. Although it didn’t exactly turn out so favorably. In fact, I did much more damage and caused myself some unnecessary and agonizing pain.

Perhaps this analogy is a little extreme, and I’m not relating “working with a designer” to “a trip to the dentist”, but I’m using it to illustrate the fact that certain tasks should be reserved for professionals.