The Most Useful Pen EverS

The only time we use a pen nowadays is to write checks every month for our outlandishly overpriced apartment, but this five-function pen could be just the thing we need. The pen comes painted with a metric/imperial ruler on the side—great for when you want to measure your junk.

Not only that, the four switchable tips are a pencil, a ball-point pen, a highlighter, and a stylus. We had one of these switchy-pens when we were kids, but none with a stylus and none with a ruler painted on the side of it. This is nerd heaven.

Product Page [Acme Studio via Boing Boing]