I find the most annoying part of being wet is wet shoes and socks- water slooshing in my shoes feels gross and your feet don't stay warm.

Woolen socks do help but keeping at water out in the first place is good. So I would invest in shoe covers- waterproof ones, not wet suit material. And then try and find a way of making a seal or overlapping leggings over the top so it doesn't come in down your leg.

I don't wear raincoats anymore, just longsleeved, wind proof jackets with wool underneath for warmth. Otherwise I just sweat anyway.