How do you guys deal with the whole body temperature change thing? I find either I'm nice and warm going out but damp with sweat when I get where I'm going...or I'm freezing when I get out of the house but am okay once i work up a good heat.

I usually pick being warm for most of the ride rather than just when I get outside....but on seriously cold days sometimes its worth it to be uncomfortably hot just so you arent freezing for 5 minutes. What do you guys do?