warm hands
I've tried several types of lobster gloves too, THEY'RE GREAT! The warmest I've found so far are some real thick suckers by Pearl Izumi.
For those who don't already know:
Always fit your winter gloves "loose" and be sure you have PLENTY of room for liners, they really make a warm glove warmer.
Neoprene gloves seem to work best in cold rain. There are some gloves made for alpine skiing that work great for wet conditions too,
Carry a spare pair of gloves, sometimes a different weight is a good idea especially when wet or in changing temperatures.
If you have trouble with cold hands, cover your ears and neck as well as your head.
Do not use cotton, when wet it can be worse than having no gloves at all