envelope x-ray vision

Ok, so you’re extremely nosy, or super “efficient” (call it what you'd like), but either way you don’t want to be bothered by opening mail. No worries, no one here is judging! You can either hold the envelope up to the light and see nothing or, you can use “Envelope X-Ray Spray.” This temporarily renders paper translucent so you can see underneath it for 30-60 seconds before it evaporates.