When you first network your office computers, you need to find a closet where you can stash some network goodies. If you can't find a whole closet, shoot for a shelf, a drawer, or at least a sturdy cardboard box.
Here's a list of what stuff to keep on hand.
Duct tape helped get the crew of Apollo 13 back from their near-disastrous moon voyage. You won't actually use it much to maintain your network, but it serves the symbolic purpose of demonstrating that you realize things sometimes go wrong and you're willing to improvise to get your network up and running.
If you don't like duct tape, a little baling wire and chewing gum serve the same symbolic purpose.