I've also started cutting mine in half, but then I have a super-thick folded-over flap on one side, with staples through it.
What have you done, so neatly and flat? Tape? Glue? I see that my article is Kindergarten-level compared to your system.
P.S. If you send me the "lightbox" text with some spaces added from your photo, could I use your photo in my "paper envelope" article? You'd get credit. I keep meaning to to take more photos and add them, but I never get A Round Tooit.
Or you could take a few more photos and submit an article that shows what the system looks like done SERIOUSLY!