I did wear long underwear, which was nice and toasty in the morning, but very warm for the ride home. But since my commute is only 3 miles, it wasn't bad at all, even though I did ride a few more miles just because it was so nice.
Tricross commuter and my Trek 710 on the trainer. I dearly love them both. I ordered a new rear derrailleur for the Trek 500. Will post soon my plans for that bike. I love that bike equally as well.
Still trying to figure out posting with the iPhone. Computer's in the shop, and may be some time before it can come home.