You need a long shower and some trainers! I have never found flipflops comfortable but some people seem to wear them all year round. I've got damp feet from walking through muddy fields in the thick fog that's covering south east England today.
I'm re-learning how to move without having my feet in "foot coffins". I can run completely barefoot for around 3.5 miles at the moment before I have to stop because something is not quite right with my form, causing me to get a slight blood blister on my left great toe. Right foot fares fine though.