A friend brought over some wine once. Not being a wine kinda guy (except for the occasional Mad Dog 20/20 ), I couldn't remember if I even had a corkscrew, much less find one. But in a rare flash of genius, I went to the computer room and unscrewed a storage hook from the wall that I'd hung about five miles of CAT5 on. It's the kind of hook found at a hardware store that you simply screw into a sturdy piece of wood and is strong enough to suspend a bicyle.
The screw end on these things is about an inch and a quarter long, and about 3/8 inch in diameter. I twisted it into the cork and pulled it right out.
We got drunk.