Do you warm up your car on cold mornings?

[GO FURTHER]

Would like to know members opinions on this.
On a cold morning, do you warm up your car before driving off, if so how long, or do you drive off straight away?

I've always made it a habit to idle the car for a few minutes before taking off.
Obviously, since the most engine wear occurs when the engine is cold.
Since recently installing my oil pressure gauge, it has made me more aware of how long it actually takes for the oil pressure to drop inline with the oil temperature and reaching normal engine operating temps. On a cold morning, driving at between 1500 to 2000 rpm sees the oil pressure start at around 82 psi, and after 10 to 15 minutes of driving will settle down to an average of 50 to 55 psi (using new fully synthetic 10W - 40).
On my next oil change, and coming into winter, I'll run 0W - 40, and it will be interesting to see how much lower the oil pressure will be on cold start ups.

Interestingly, I've been researching this topic, and it seems motorists are divided on this issue of warming up a car (not talking about cars that sit out in really cold climates and snow conditions).

Some say that modern cars, (since fuel injection took over from carburettors) don't need to be warmed up, as the ECU will compensate in the air / fuel ratio and timing, etc), where as older cars needed to be warmed up especially those with manual chokes before they ran smoothly.

Others say that idling a car to warm it up is not the best way, since you are not warming up the gearbox, diff and other components at the same time, so driving it straight off is better.

Then again, some say that warming up a turbocharged car is more important before giving it the boot than a naturally aspirated car, which seems obvious.

So what do you guys do?
What's your daily start up procedure ?

Thanks