The CardSharp 2 from Iain Sinclair is a folding utility knife that turns into a credit-card object when it's not in use, suitable for storing in your wallet. It's a clever little design, unlike a lot of credit-card tools that leave you with a rectangle of plastic in one hand and a tool in the other, the "card" folds around to become the handle.
(via Red Ferret)
CardSharp 2 [iainsinclair.com]
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.