Momma's car has no block heater. So tonight I did an old trick that my buddy Jim showed me years ago. As I installed my pseudo-heater it occurred to me that others on this board may not be equipped for weather they are facing this week, and this trick may make a difference for them.
Grab a trouble-light and a old-school incandescent light bulb. Pop the hood and put the light bulb so that the heat shield is resting against the engine block and the safety cage is against the lower rad hose. Now click it on, close the hood, and go to bed. The engine will absorb warmth from the cage, and the antifreeze will warm in rad hose, circulate up through your radiator and set up a natural flow to keep the engine warm all night. You only have 60 to 100 watts of power, but there should be enough heat that in the morning your engine will fire up. Alternatively, you can put the light on the battery to prevent it from freezing.
Also, make sure you have a full gas tank so you don't get frozen fuel lines. And that you have winter washer-fluid. I suggest getting a container of fuel line antifreeze and lock de-icer, and keeping them in your glove box this week.
This cold weather wisdom is brought to you courtesy of Canada, where our nipples stay sharp until the first twist of spring.