I was over-bundled for 5° and had to shower off when I got here.

For me that's pretty cold - allegedly the coldest morning here in 18 years - so I was winging it.
What I didn't realize, other than more is not necessarily better, is how exhausting it is with that much clothes encumbering you. I felt like I'd finished a good workout, slow-motion that it was. On the bright side the plasti-dip experiment on my running shoes worked excellently. You cold-weather guys should try it. The cloroplast handlebar box also did the trick (I have no gloves for this weather), but it looks so goofy it's not staying on after this passes.