Stuffing your boots with newspaper soaks up the wet, then stand them under a radiator to dry. Trouble is of course you have to go back out before they are dry.
As a biker, the gloves answer for me is lots of layer - 4 on a bike: very thin silk liners, then fine wool, then ordinary leather bike gloves then waterproof barbour mitts over the top - and plastic hand guards help to keep the windchill off too. On a bike you can of course put one hand at a time down on the engine - does that work on a quad too?
All those layers don't really work for farm work though, as you usually have to take your gloves on and off all the time. I've tried the washing up gloves idea, over fine wool gloves, but they are too tight and make my fingers worse. Of course I could use larger marigolds

I have been wearing the thin wool gloves under sheepy lined tractor drivers thick leather gloves, but recently I've been coming in almost weeping with the cold. My OH is doing the heavy work so I can come in when I need to, but I totally sympathise with those of you who can't. I had to stick it out for many years - miserable

That's about the only advantage I can think of to be in poor health