Well, question about UNDER a jersey.

Say it's just a bit too cool for your jersey, like it was for me today with my faux jerseys from Target. I tried to wear just the jersey but I was too cold. So I choose to put a tee-shirt on underneath, and I was fine, but God knows that was way too Freddish for a real roadie, right?

So, are there "official" undergarmets to wear when cycling that go under jerseys, and what do they cost, $100 each or so?

Does this ever end?