Though it resembles something Darth Vader might have carried around, the Vacu Vin WineMaster Corkscrew is a pretty amazing piece of technology.  Using it is simple. Place the Corkscrew over the top of the bottle; the built-in bottle grip will hold the bottle tightly. With both hands, gently move the handles up and down; the specially-coated spiral will easily insert into the cork and then extract it.