iRobot Roomba 650 Robotic Vacuum Cleaner (Buy from Amazon ) Using robotic vacuum cleaner is an excellent way to keep your floor clean with fewer efforts, especially when you care about keeping the places under the bed and sofa clean. The small robot can be scheduled to vacuum the floor. It does a decent job by itself. It's a must-have for a large house cleaning or you have a busy schedule. The price on Amazon is $299.99, which is the price seen so far. This model is the #1 best seller on Amazon commercial indoor robotic vacuums.