What's PROD and not PROD?

A blog entry from a Pythian team member helps us change some of our daily tools so we can easily distinguish a PROD environment connection from a non-PROD environment connection.  I haven't been able to sit down and come up with my own schema with colors for PROD, QA, DEV, PROJ, SANDBOX, etc. but I'm planning on doing it when I get a chance and hopefully before I make a mistake in one of them!