some barefooters like not washing their feet. personally, i don't get that. if my feet are dirty when i get home, i just wash them in the sink real quick. don't need any special tools; hands, water, a bit of soap, and maybe a washcloth will be plenty.
...those are what i use, but whereas i can avoid touching anything with my hands until using a towel and any residual dampness air-dries between my fingers and skin, hopping across the bathroom to a towel one foot at a time is awkward and best and my feet are pretty much going on the ground immediately after mostly-drying them...