We used many sanding machines over two weekends. The floors are all stripped now and waiting patiently for varnish. Hopefully they will end up better than they started, though I am not convinced. My back may never forgive me for all those hours of bending and squatting.
I did finish painting the kitchen though! Everything in the house is torn apart now and half finished, which is starting to make me bonkers. Kind of like that feeling of having too many UFOs and not making any visible progress. So I picked on project and crossed it off the list. We still need to do back-splashes, but at least everything is functional.