Envelope X-Ray Spray is a $16 can of magic that lets you see through a layer of paper for 30-60 seconds before evaporating and leaving no trace of itself. It's perfect for finding out what kind of birthday card your grandmother sent before you opening it on your actual birthday. Granted you won't know how much money is in the card, so just assume $20 less than last year. Now x-ray envelope spray is neat and all, but what I really want is a spray that can see through scratch-off lotto tickets. I've seriously only won $20 on the last $170 I've spent. My system isn't working! "What's your system?" Get drunk and buy a bunch on the walk home.
Hit the jump for a video demonstration.
Thanks to Thomax, who heard James Bond used to carry around a can of this stuff to spray the letters of the women he slept with to see what sort of things they were writing about him to their pen pals.