I'm a Genius!!!

Not that this fact should surprise anyone :) Here is the latest demonstration of my intellectual superiority. I have removed almost all the wallpaper from the nursery and am now down to just little tiny bits of paper stuck to the wall. These nasty little devils are nigh invisible to the human eye and will not come off by just washing the wall. So, what to do?
I decided that the best way to find these little suckers is to turn off all the lights in the room (of course this only works if it's dark outside as well). Then, I take a flashlight and hold it perpendicular to the wall. WHAM!!! Those little stuck scraps of paper spring into view and now I can focus my wall cleaning efforts on the areas that actually need cleaning.
Now, I have heard of a water-iodine solution that when applied to the wall will cause those scraps of paper to turn a purplish color. The only problem is I don't know how much iodine to use, so I shall keep using my technique of exploiting the diverse luminiscent properties of paper, adhesive, and wall.