After earning our first stripes with that project, we tackled the dining room. It had not one, not two, but three layers of flooring on top of the hardwood: shag carpet, vinyl tile, and a thick backer board. Normally, that would be annoying but not a huge problem. Unfortunately, the previous owners decided that anytime a piece of the flooring curled or popped up they could fix it by nailing or screwing it back down. It had at least a thousand fasteners tacked in! After about a week of six-hour days getting them out, my hands were cramped from working with the hammer, screwdriver, and pry bar, and there were holes everywhere. We were sure we'd have to cover the floor again.