OK, here are the steps to make an origami envelope.
I used an 8 1/2 x 11 sheet to get an envelope that keeps the same postage rate as normal. You may want to use a heavier stock.
1 - Fold paper in half so that short end meets short end. Crease and unfold.
2 - Take opposite corners and fold them at 45-degrees, so that the inside edges lie along the center crease.
3 - Fold 2 leaves "open" slices at upper right and lower left (rectangle shaped). Fold these in so that the outer edge meets inner edge (you can see the creases from this fold in the picture above (I went too far and had to go back)
4 - Take one of the flat corners created by fold 3 (lower left/ upper right) and again fold at 45-degrees to lay along center line. Repeat for opposite side.
5 - Tuck the corners you just folded in under the lip they're now on top of.
I sealed the diagonal with a sticker seal - but it may not even be needed if your folds are tight and you use a good stock. These mail very well, with no issues from USPS.
Book#16 - The Mysteries of Pittsburgh by Michael Chabon. A quick glance at the Amazon reviews makes me think I missed something in the book. It's a fast and compelling read in some ways. You want to know what happens with the story. But it had a bad aftertaste for me. I was left unsatisfied. Disappointed that what had such rich possibilities ended up being really superficial. The narrator puts such emphasis on appearances, primarily describing characters and their moods by their clothes. When he tells the background of his friends, you get a sense that there's the potential for something deep. You're dangling in anticipation and end up with what's basically a belch in the face. A let down. It leads nowhere. Despite the potential, the narrator doesn't care, leaves it and moves on. I need to find a book that I feel really accurately portrays college life in a way I care about and feel is well written because this left me hungry.