Repeating what tarwheel reported, first cold commute since spring. Not bad, and I judged the clothing correctly (3 years of experience helps!). My fingertips were cold, but that's normal. It's time for my annual search for warm gloves--I've been reading the "Warmest winter gloves" thread to get ideas.
Another commuter was in the locker room this morning too. He's as lean as I am (maybe even more so, which is rare). As he came out of the steaming shower he was still blowing on his hands. We chatted about cold commutes; it turns out he couldn't find his gloves this morning so he rode beare-handed.

Ouch!
Finally, my closest friend (besides my wife) also commuted today. This is her first year commuting and she misjudged the temps. I plan to provide her with my clothing chart for different conditions (based on a chart I saw posted here on BF a while ago).