I guess posting pics from last night would be a moot point since once you've seen one piece of plywood with two-bazillion nails and staples in it, you've really seen them all.
I am finding that crowbars, while quite effective on the first half of a sheet, get a little difficult to deal with on the back side of a sheet of plywood. So I went to the home center and bought what is called (I think) a pinch bar. It's about five feet long, has a flattened pry end and is heavy.
Jamming it under the sheets of plywood and then raising it up and the screeching sound of nails being pulled fills the house.
So, we're down the front hallway and have made the turn into the kitchen.