If you need a pen that does it all, the Monteverde 9-in-1 Multi-Tool Stylus Pen ($22) will handle any job you can throw at it. The pen features a heavy 6-sided barrel that houses the smooth writing soft-roll pen at one end and the touch screen stylus on the other. Under the stylus you will find a philips and standard screwdriver. On the barrel you have a level, ruler, and three different scales.
