I wear a polypro full balaclava (sp) on the cold mornings and I've found pulling the glasses slightly down on my nose relieved most of the fogging. Most of the glasses you buy now are almost a "wrap" style and hug our faces fairly close. Just resting them slightly farther out from my face seems to do the trick.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"