Multi Tool Card
Credit-card shaped, eight-plus jobs.
$9.95
Free shipping, and 30 days to send it back for a full refund if it isn't right.
What it's good for
Fits a card slot
Flat enough to sit in a wallet next to your cards rather than in a pocket you have to remember to fill.
Eight-plus functions
Screwdriver, hex wrench, bottle opener, can opener, box opener and an eyeglass driver, cut into one piece.
Nothing to break
One piece of steel with no hinges, springs or moving parts to seize up.