Getting ready to go out and cover the garden for the 30 degree low tonight.
I am using the little coffee cup hot plate as a heater, now in the tent shaped garden A-frame that I constructed. It worked well last night. It's like babying the garden through the cold back when I was first planting in May. I have old aluminum newspaper press plates, which make good heat reflectors at night, light weight and easy to position to keep the heat reflected into the garden tent.
Good luck with all the high temps, folks. I have the other extreme, but at least I can put on a sweater to deal with my weather.