I remember an old car I used to own. You know the kind, ratty and raggedy, driven when I was a poor college student. I was having trouble with something I couldn't readily identify myself, so I took it into the shop.

The mechanic looked at it a couple of minutes and said, "What you really need is the radiator cap solution."

"Oh," I said, trying not to sound too confused. "Do you mean the radiator cap isn't holding enough pressure?"

"That's part of the problem" he said. "What you really need to do is lift the radiator cap and drive another car under it. Then the next day you can replace the radiator cap, and it should solve your problem."