I had on a polypro liner and a wool sock. I think the issue was likely that I am approaching the stuffed end of the spectrum since the road shoes weren't made to take anything more then a thin sock. I"m going to look for a larger pair during an upcoming bike swap. Meanwhile, I'll probably just use my boots and ride on the clipless pedals and switch my shoes.
If I don't have much room in the shoe is there anything else I can do besides the ankle thing? I know putting a toe warmer on top can help but it's only a 6mi roundtrip which seems like a waste. Maybe a trick for increasing blood circulation?
