Any chance anyone had luck using any of this stuff to remove dark streaks caused by rain coming through a window? We just bought a house and at some point water leaked through onto the pine paneling through a couple of the windows. Not sure if it is mildew, but its definitely some kind of dark streak. I'm going to try the dollar store cleaner method, but a contractor also suggested we use something like tilex. Trying to figure out what I should do!