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 on sale like iRobot's models are right now on Amazon. To start, the retailer has discounted the Roomba 694, one of our favorite budget picks. After a 35 percent discount, the robot vacuum is $179.