I try to choose shoes with plenty of mesh that are made of materials that don't soak up much water and socks that feel OK when wet and dry fast. That way I don't need to use shoe covers in the conditions that I tour in. For me that means a lower end shoe from the Sidi line and poly socks.

I have used shoe covers around home, but never taken them on tour. For me they are more for temperatures in the teens, single digits, and below and I don't see temperatures that low very often on tour. The rare times that it gets that cold I hang around in camp until the sun comes up for a while and it warms up a bit. I guess that I could do the bread bag trick but never have on tour even when I did the ST in winter.