It depends on what your definition of cold is:
-here in the SF bay area: anything around 32 F is cold
-in the NE United States: cold is -10 F and below.
I guess, you could get a plug-in heater that wraps around the oil pan. Put it on a timer. So, it comes on an hour or so before you leave for work.
How long does your car take to warm up on a cold morning?
(my '91 CRX Si takes about 1 mile of driving or maybe 5 minutes idling)
Take Care,
ChrisS