So, my dorm room doesn't have much space, and I don't have a lot of monitors, so KVM switch to the rescue.
Oh, wait... I don't have a KVM switch... yet. I'm working on making one (without the K or M) out of a parallel switch box.
I'll post a picture of my progress later (today or tomorrow).
If you have multiple machines, some have composite out, some have VGA out. If you're only using one monitor, in most cases you'll need to convert all of one to the other. Or, you need three switches.