Yesterday I finally decided I had had enough with the giant hole in the floor. So, I went to work. Although this is probably only a temporary fix, it is much better than before!
Before: A large gap in the floors between two rooms, that we all step over numerous times a day!
Because this is a temporary fix, I just glued my hardwood together (using the groove you normally nail through) and then placed it over my gap in the floor. I went right over the tile too, because it is un-level there anyway, and it is pretty close to being level by setting it over the tile. I did not nail it down, because it is temporary, and hasn't slid around too bad. But if it does, I will nail the side closest to the wood floor because you can't nail through tile!
Now, I have to work on the putting up some moulding. See the green on the wall? That's not mold. Thats the carpet pad from when they had glued a carpet trim around the baseboards. Seriously? Yuck.