I have been working with several people lately that want to make a change in their careers but don’t really know where to begin.  I have a few recommendations:

1. Know your strengths.  Definitely take stock in what you are good at.  Not what you “think” you are good at, but skills that you have received positive feedback on.
2. Know your weaknesses.  I know, so much more difficult.  And don’t give yourself the “pat” assessment that you don’t like conflict or something similar.  You need to be really specific with yourself.
3. Know your value system.  In other words, what can you absolutely tolerate and not tolerate in a career, workplace, co-workers etc.  For example, if you know that being in an environment where you are not at a computer all day is paramount then don’t even think about taking a job where computer tasks are part of the major responsibilities.
4. Once you know who you are (and  I mean really be honest with yourself) you can begin to identify transferable skills that are used from one job to another.
5. Richard Bolles has written a workbook that can help you get started.  The book is loaded with practical exercises to help get you started on your journey to finding yourself, your skills and ultimately, happiness.