THIS IS KIND OF COOL: The Swiss Army Rescue Tool. Lacks the corkscrew, though.

UPDATE: Reader Chris Fountain emails:

Glenn – a close friend of my daughter’s (and a young Marine home for Christmas) drowned when his car flipped over a low bridge and landed upside down. Friends of mine, cops, told me that the poor kid’s hands were bloodied from pounding on his (electric, hence disabled) window, trying to get out. Hearing that, I went on line and purchased key chain window breakers for all 3 of my kids.

He recommends this gadget. It’s cheap.