Are you a couch potato? Then you need Logitech's new Couch Mouse M515. It's made for surfing the Internet on your couch, bed or carpet. Its sealed bottom won’t collect fabric fuzz in the sensor opening, and its easy-gliding base means your mouse tracks smoothly on blankets.

It works by hand detection so it goes to sleep when you do. And the "plug and forget" feature means that the tiny Logitech Unifying receiver stays in your laptop—so it’s less likely to be lost—and gives you a reliable connection with virtually no delays or dropouts. (Figure two years of battery life.)

$49.99 at Logitech.

My only question: What took them so long?