Before the $70 Cordless MouseMan Optical, from Logitech (800/231-7717,
www.logitech.com ), scurried onto the scene, no mouse had successfully mixed wireless and optical technologies. The farmer’s wife might have lopped off its tail, but the MouseMan is anything but blind–it takes pictures with an 800-dpi sensor, saving you from wires, balls, and pads. It runs on a frequency of 27MHz, rather than 900MHz, so it’s less likely to run into interference from other cordless devices around the office. AA batteries, a battery-life display, and power-management features from Agilent Technologies mean the MouseMan won’t conk out on you unexpectedly. Go ahead; see how it runs.