Tips for Introverts and Extroverts to Improve Productivity

There's a lot of enthusiasm and energy, but sometimes without a plan, the task of the project perishes. Extroverts will jump in with guns blazing, ready to get it done and realize they don't really know where they're trying to go or how to get there. So what are some practical steps that either an introvert or an extrovert can take to improve her productivity?