The bathroom is about ready to be spackled and painted. I'll need to talk to Mike about how he would suggest doing some of the work, but the foam stuff worked very well for hiding the gaps between the medicine cabinet and the plaster. It covered holes between 1/2" all the way up to about 3 inches (that hole was thanks to plaster disintegrating due to a poor previous patch job).
So yeah. Months of not making much progress and then bam. All sorts of stuff starts happening all at once. Fortunately I've learned some key stuff (especially about wiring) so I should soon be able to tackle random projects with less trepidation. The driveway is really the biggest thing that needs to be done and I should have that poured on Monday (assuming nothing comes up).