Top 10 Windows security best practices

TechRepublic blogger Brien Posey recently published his list of Top 10 Windows security best practices.  I love lists (like many people), so I reviewed his list and decided to share it with you.  Even Linux/Unix admins can benefit from most of the items on the list.  You'd think most of this stuff would be common sense, but if common sense was so common...(fill in your own list of stupid things people do).