What to wear at 15 Degrees?

When it's in the teens outside, what should you wear? I think pretty much everything. Here's what I wore when it was 15 degrees on the way to work on Tuesday:

This is pretty dang cold for Atlanta.

This is pretty dang cold for Atlanta.

Bib knickers, long sleeved jersey, jacket and wind vest.

Bib knickers, long sleeved jersey, jacket and wind vest.

Hat with extra insulation, winter glove with glove lining, and face mask.

Hat with extra insulation, winter glove with glove lining, and face mask.

Winter wool sock, extra long sock, toe covers and shoe covers.

Winter wool sock, extra long sock, toe covers and shoe covers.

With all this on, my toes and finger still got a little numb; otherwise I was pretty toasty though!