I'm going to install some new trim on the exterior of the house, and I've
cut various wood pieces to the right sizes, but there will be thin crevices
between some boards even when nailed, ranging from 0 to about 1/8 inch. WHat
kind of caulk or putty should I sandwich in there while nailing the boards
into place? I'd like to put in some excess stuff and then wipe it
smooth/flat with a putty knife. Thx in advance.