We have this one room that has never been finished since we moved in (almost 4 years). It was a place to put all the unwanted stuff that we couldn't throw out. In polish we call it "pierdolnik".
But the time has come. We're going to finish the room over the next few days. The plan is to make a "movie room" there. A place with a comfy sofa, a projector, Playstation and a little fridge full of little cans of beer.