You have just started a new sprint, and want to get coding.  You crank up Eclipse, and off you go.  Well stop, a minute.  Have you set up and configured your environment correctly?

Take the time to make sure things work correctly, before you start coding.

If you were a chef with dirty blunt, knives, you would not be a chef (if you have any sense of professionalism).  I am constantly surprised by developers who don’t take the time to prepare, but prefer to ‘do it as we go along’.