I've been going out on early morning rides - temp about 20F. Now, I now that many of you ride in much colder weather - but the thing is, that is as cold as it has gotten in the Denver metro area this year. Record snowfall just 20 miles west, and not a drop of moisture here in about 2 months. We are in the rain shadow of the Rockies.
I find that layers REALLY work. Light layers, not heavy thick layers. I am using 5 layers on top - two long-sleeve light undergarments, a hooded jersey, a tyvek windbreaker, a breathable windbreaker (I know, it makes no sense) with a hood.
On the bottom, I use some winter padded tights, covered by nylon lined sports pants.
I bought some of those mittens you guys recommended - can't remember the names - got them on sale at Northern Tool Company for $3.00 and bought two pair, and some liners.
So, all-in-all I am pretty warm
Today, I tried a heavier bicycle-specific yellow-type jacket I got from REI. It was cold. The material is more canvas-rubber-like and actually seems to absorb the cold and pass it on to me, while the windbreakers stay warmer to the touch.
So, today I stretched, did a 2 minute plank, 30 pushups, a number of dumbbell pushups - 50 lbs each arm, and flies, went for a ride for about 1.5 hours and then went swimming.