Walking boots, gaiters and quick dry tousers! No grip on wellies and are horrid to walk in.
My day to day shoes are Scarpa walking shoes and I rarely change out of them. If I do, it tends to be into sturdier and more waterproof walking boots (Zamberlan IIRC). I always wear Rohan trousers which dry very fast and wash easily - if they get wet and dirty, that's life!
I've tried to find a pair of wellies to fit but even after several agricultural suppliers and similar, have had no luck - I have very broad feet and simply can't get my feet into any of them, even the expensive ones!
Ah well, you're probably a bit more fortunate than I am! I have slim feet and Hunters - field sports rather than working wellies - with two pairs of socks are about the only ones that fit. Scarpa, and most other, walking boots are hopelessly wide. Most leather shoe fittings seem to start at "Standard" - which is too wide for me - and get wider.