Eight reasons for reinvinting the wheel

Hey! I enjoyed your post. #4 seems especially important to me. People expect to reimplement things in school - you're working problem sets over and over which have been worked by generations of students - but so often when people get out of school they act as if learning stops. Rewriting and trying to improve on existing code is a good way to keep the brain fresh.

Also I liked your post because you took a position contrary to a lot of conventional wisdom (don't reimplement...) and made a good case for it. At least, you defined some boundaries to conventions.