iRobot Roomba 790: carpet crawler

    Not so long ago, we'd spend every Saturday afternoon moving slowly across the living room floor, carefully licking up all the cat hair and crumbs In our path. But now, a robot can do it for us. This Roomba autonomously munches dust for hours, finding denser patches of filth with its optical and acoustic sensors, but if you're hankering for the old times, It also comes with a touchscreen controller that lets you assume direct control and drive it straight towards the nicest hair or tastiest crumbs.
£800, irobot.com