I have different ringtones for different folks. Everything from Warren G/Nate Dogg ("Regulate") to The Misfits ("We are 138"). But my main ringtone is "Bales of Cocaine" by Reverend Horton Heat.
I have beck "loser" for anyone that isn't in my contact list.
and Oasis "Glycerine" for those that are in my contact list.
if the wife calls it plays GNR "Paradise City"
Wife - "I Need A Hero" by Bonnie Tyler
BFF - "It's 5 O'Clock Somewhere" by Alan Jackson/Jimmy Buffett
Home - "My Front Porch Looking In" by LoneStar or "Learn to Fly" by The Foo Fighters
Texts - The 'message for you' scene from Monty Python and the Holy Grail (can't link it from work, all the mp3 and sound sites are blocked)
Engineering Support at work - The news caster scene with Steve Carrell from Bruce Almighty.
Like most others, I set it to vibrate at work and leave it sitting on my desktop PC about to fall off. If I don't catch the vibrate, it'll vibrate itself off the computer and go clattering onto my desk. Can't miss that.