If you worked with me at PC World at any time from about 1998 until earlier this year, you saw my trusty, indestructible Contour Designs medium-sized left-handed mouse–a serial-port ancestor of these current models. I’m not so sure about all of Contour’s ergonomic innovations, but the company has my undying gratitude for acknowledging the existence of left-handed people–and with mice in three different sizes, yet. (You righthanders get four sizes, but who ever said life was fair?)