Amazon has the iRobot Roomba 780 Vacuum for $429 (599.99 – 170.99 instant savings) with Free Shipping for a limited time.

The iRobot Roomba 780 vacuum cleaning robot removes up to 98% of dirt, dust and pet hair – on its own – at the touch of a button. Using iAdapt Responsive Cleaning Technology, the robot thoroughly vacuums the entire floor, including hard-to-reach spots under furniture.

Target has the iRobot Roomba 650 Vacuum Cleaning Robot for $354.99 (399.99 – 10% coupon – 5 coupon) with Free Shipping for a limited time. To get discount, use the coupon code: ROBOTIC and TGT4QBJF at checkout. Deal ends December 6, 2014.