Well today it finally happened - it was just too cold for me to ride more than 15-20 minutes or even less at over 15mph. The temperature was about -2F this morning, with the wind chill down to -15-20F (about 10mph wind and 20mpg gusts) according to weather.com. My body was fine - although I could have probably used another layer - but my face was just frozen - literally. I was wearing a bike helmet with GoreTex/wind cover, skiing goggles, a balaclava, and a skull cap. The top of my head as well as my neck were covered, but my face was just getting slammed with the wind.
I am not sure what else I could do, really, other than move to a full face helmet. My balaclava is a fairly good one and generally keeps me warm. I tried some of the Psolar models, but am not so keen on their design.
Should I move to a full face helmet? If so, does anyone have any recommendations?