Ever needed to see who has files checked out? Here's a way to do it command line style.
tf status /user:* $/serverpath /r /s:http://server:8080

An example that works in my environment:
tf status /user:* $/sportsadmin/main /r /s:http://n3srvno04:8080

You do need to open Visual Studio Command Prompt to have the command tf.exe in path.