Right now, you can pick up the super compact Switchbot K10+ robot vacuum for just £169.99 at Amazon (was £299.99). That's the cheapest this tiny robovac has ever been, even beating last year's ...

So when his new Sonoff WiFi switch failed soon after deploying it ... so he whipped out his Flir One Thermal Camera and watched the device as it powered up. The GIF nearby shows that there ...