[.38sw]

Not only jumper cables, but I had an in-line heater installed in my car so I could plug it in in the coldest nights. I lived in the Central Idaho mountains for many years, and it could get cold there. I didn't have a garage, so I had to park my car outside. The in-line heater was indispensable. My car always started right up.

[BureaucratusMaximus]

The in-line heater was indispensable.

I got one on my minivan, but I wish they'd come up with something like that for the doorlocks...to keep them from freezing that is.