Hand warmers and extra gloves are always a good thing.And as Beagle stated ice melt is a must or ya might not get pulled back out. Those ramps freeze quick after a couple boats go in and out.And as much of a pain as it is always wear your PFD in the winter. I bought some good self inflating suspender type and they are well worth the money cuase you forget ya got them on.
There will be days when the fishing is better than one's most optimistic forecast, others when it is far worse. Either is a gain over just staying home.