I'm starting to plan ahead for winter riding, and gloves are definitely high on the list.
What gloves work well for winter riding? Are cycling-specific gloves the way to go for a flat-bar bike with index/thumb shifters? Would regular winter gloves be good enough?
Another option I'm considering is buying some MTB gloves (full finger, some small amount of insulation) and wearing them inside regular winter gloves on the extra nasty days--letting me keep some protection if I need to ditch the thicker gloves (for repairs, or any other time the larger gloves get in the way). Is this advisable?
Update 1: I should mention I live in Burlington, VT. Lots of days below (and some well-below) freezing, and lots of snow :-D
Update 2: More clarification! I'm hoping to commute in the winter on a fairly short route. Initially (late fall) it will be ~4.25 miles, but hopefully by the time real winter sets in it will be about half that distance to a new location. I'd expect my ride will consistently be 20-30 minutes, so I'm looking for something that will work well for a relative short while--but not worried about all-day hauls.