Keith Arthur's tip of using Vaseline AKA Petroleum Jelly is probably the best winter fishing tip of all time.
I just cannot fish in gloves they just get in the way ..... I have tried loads over the years. The nitriles are probably the best apart from they get very clammy after a while then they get cold too.
Take a really good dab of Vaseline while still in the car and rub and rub and rub and rub and rub. It does take some time to work it into the skin and the greasiness to disappear but it will.
Firstly you have increased and improved the circulation in your hands.
Secondly you have waterproofed and insulated your skin.
This works amazingly well and wellworth the little time it takes.