This little robot window-cleaner is the best labor-saving device I've ever used, and it's going cheap at Amazon right now

Hate cleaning windows? Me too, which is why Winbot cleaning robots are some of my all-time favorite smart home gadgets. These bots use strong suction to grip your windows, and roll across the surface on soft rubber treads. They spray a fine must of cleaning solution onto the glass in a fine mist, then buff away dirt using a microfiber cloth....