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2 years agoMy old Samsung printer can enter a state where it consumes ~100W without doing anything meaningful. It’s not obvious what is wrong, but without power monitoring I would have never realized this.
CO2 levels raise astonishingly fast when people are present in a room.
I have mice visiting my garage and I can tell when by looking at the motion sensor history.
My uninsulated roof stays frost free even at -15°C.

Easy: So I can scratch Toyota from the list of potentially interesting car companies for my next car.