Our illustrious leader Chuck Cage wrote about his hands-on experience with the iRobot Dirt Dog back in December 2006 — yet how many of us are still working in a shop with a dirty floor? Both my hands are up. Now Fry’s is selling the Dirt Dog for just $100, so there’s no excuse for a dirty floor. iRobot designed the Dirt Dog for workshops and basements, with specially designed counter-rotating brushes that spin at almost 1,000 RPM to pick up dirt and debris that clings to rough surfaces. The Dirt Dog comes with a 14.4V rechargeable NiMH battery and a power supply.