iRobot was founded in 1990 and has had its robotic hands in multiple pies over the last few decades.
Currently, its mainstream offerings are Roomba, an autonomous robot vacuum cleaner, and Braava, a floor mopping robot. Both come in many different shapes, sizes, and budgets, and all are designed to give back some precious time that you'd otherwise spend on two of the more tedious tasks that housework offers.
I got my hands on the Roomba i5+, iRobots new self-emptying, wifi-connected robot, and being truthful I didn't have high hopes.