As one of its daily deals, Best Buy offers the Ecovacs Robotics WinBot Window-Cleaning Robot in Champagne, model no. W710-R, for $199.99 with free shipping. That's tied with our mention from last August and the lowest total price we could find now by $35. It utilizes an on-board computer and multiple sensors to calculate the size of your window and program a custom cleaning path. It features an approximate cleaning path of 9", 1-button operation, two cleaning pads and squeegee, and remote. Deal ends today.