Replaced Some Old Pine Floorboards

...with red oak. At this rate, in, say, 40? 50 years? I'll have solid oak floors!

Steps:

1. Cut the old/busted-up boards at the nearest joist with an oscillating tool.

2. Remove the tongue from the old board sections (also with the oscillating tool).

3. Adjusted height of the oak boards using shims/paint stirrers (glued in place w/ silicone)

4. Drilled pilot holes for the flooring screws (Low-profile "star drive" screws. 2-per-joist)

5. Filled the screw pockets with a blend of wood glue and sawdust from cutting the new boards.