Answer for kimikaw - yes, I picked up a pair of Smith ski goggles for last year's winter commutes, and wore them in the under 15 degree situations. I usually just wear wrap-around style sunglasses (Smith Factor Max, usually with the clear lenses this time of year) but in the real cold I can't keep them from fogging up. The goggles worked amazingly well. Kept my face warm, tear-free, and fog free.
Sit bones = ~135 mm, saddles that work ~ 155cm/6.1 in wide
2003 da Vinci (custom road/all-rounder)/Terry Butterfly Ti
1994 Gary Fisher Nirvana (vintage MTB/commuter)/Terry Butterfly Chromoly
1991 Terry Symmetry (NOS frame/fork, project in progress)
1973 Raleigh Super Course (project in progress)