I got out today, done 14.4 miles. Was a nice cycle, cold but I was well wrapped up. Thermal jersey, wind proof vest, cycling jersey, arm warmers, roubaix leggings, overshoes, and my ear warmer. I find as soon as my legs and feet get overly cold they just shut down and I can barely summon the energy to turn the pedals. Plus, at least if I'm too warm I can undo the zip on my jersey and cool down a bit.
Would have been a lot nicer today if I wasn't being beaten half to death by a headwind on Castlemilk bypass.