Here's a tip that I learned a few weeks ago from one of the docs at my clinical: he advises his patients with Raynaud's to wear a turtleneck or a scarf and apparently that helps, something to do with where the nerves are that control vasoconstriction. I haven't really tested this out yet but it's worth a try. Also, magnesium is said to possibly help; I'm about to start taking this for an unrelated reason but it will be interesting to see if it cuts down on the vasospasm episodes (that would be a nice bonus) given that it is now the season where they tend to happen. I'll have to report back.
2011 Surly LHT
1995 Trek 830