Business 2.0’s Gear section featured these little PicoPads in its most recent issue. Basically, PicoPads are little pads of sticky-note paper, with a small pen, in a small sleeve that is small enough to fit into a credit card slot in your wallet. Awesome idea. Awesome execution. And if the $4 price is too much for you, I bet you could make your own version for even cheaper (especially if you steal the sticky notes and pen from work.)

Check out PicoPads here.