When I installed the removable floorboards a year or so ago, I had decided to skip the installation of a few of the floor nutplates in the sub-structure. I did this for weight considerations and simplicity, but I've "re-thunk" this philosophy. The empty holes looked funny to me, so I began installing 14 more nutplates today, thus filling all the holes in the floorboards and giving the floors a better, finished look. I drilled, countersunk and primed all the locations, so they're ready for the installation of the nutplates.
I also painted a few various brackets -- the ones for the flap limit switch, aileron trim servo, and autopilot roll servo.
Finally, I spent some time studying the installation and components of the Airflow Performance fuel pump and filter, and studied where I might install the Safety Trim controller unit.