What do I use to fill in the crack between the wall and floor of my tiled bathrooms?
In the bath with the tile base, there is caulk available that is colored to closely resemble a number of colored grouts. Any of the big box stores will carry a good selection of colors.
The wood base will need only a good version of white painters caulk, wiped in with a dampened cloth to make the line only in the joint. I forgot to add this detail about the tile base.