Imeant to post this a while back (say, back when I'd actually finished the work in early September), but didn't get around to unloading the pictures from the camera until today. In any event, here's a sped up version of process of renovating K's office. We tore out the drywall in the outer walls; ran new electrical, phone and Cat-5; straightened out the door; installed an exterior light outside the door; and insulated the walls. And of course repainted everything when we were done.
While the walls are open, you can see why blown in insulation as a retrofit would be more difficult. Not only are there diagonal braces between the studs, but there are some horizontal braces here and there, too. So it would mean at least 3 holes in some stud bays.