In the bathrooms in my house (purchased last summer), there is
painted or stained wood trim that meets the tile floor.
Is it a good idea to caulk there? If so, what kind of caulk?
In one bathroom, it looks like there's some kind tile grout between
the trim and the floor, but I can see a small crack in it. In the
other, there's a 1/8" gap underneath the trim. (I didn't build this
so I don't know what's back there). And for that bathroom, last warm
season we had a mushroom (!!) growing out of the corner there.