Igor Bonifacic / Engadget
Roomba robot vacuums are up to 35 percent off at Amazon – Robot vacuums can be a godsend if vacuuming is one of your least favorite household chores. In recent years, new models from iRobot and Shark have become more intelligent, more powerful and, best of all, less expensive. Still, a robot vacuum is an investment, and it helps when they go …
