The floors have all been removed. The top layer in the front room was an overlay of small wood pieces secured with hundreds of tiny nails. The next layer was hardwood installed long enough ago that it was secured with rusty square-edged nails. The photos above show the WIDE pine. It's showing wear and tear - you can see the discoloration and there are gaping holes in spots. It was definitely time for this make-over. That said, I do feel like I'm living an episode of This Old House or some other makeover show where the plans are twarted by the unexpected things that are discovered as the house is opened up.

A noticeable change - where there was once a tub, there is now an opening for a set of stairs to the basement.
Before and after - left-hand photo is where the bathtub used to be. Right-hand photo - the opening. Today the stairs were going in.
The bathtub has a new purpose - place to dump tools.

On the right is a photo of the closet which is currently full of a tin ceiling. What to do with it? I don't want to throw it away, but now to re-use? Thoughts, anyone?