I love career assessment tests. Whether the tool is complex or simple, whether it places you in one of six personality categories, or helps you identify which one of 4 communication preferences you use the most, I think it's always useful to take some time to reflect on who you are and what you can contribute in the workforce.
Here's a fun one called the Holland Occupational Themes Self Assessment. It takes just a few minutes to find out if you are realistic, investigative, social, enterprising, artistic or conventional. Then check the Career Briefs section to see which occupations your personal theme matches.