a) The Three Card Monte is a wallet made of letter paper. When made from paper with a card design printed on it, it has the trompe l'oeil effect of being three playing cards in a spread, the ones commonly used in a street hustle called, three card monte.
b) When open, the wallet gives easy access to three credit or identification cards and a finite amount of cash.
c) When closed, the model fits nicely into the breast pocket of your shirt.
Step 1: The Crease Pattern
a) In the printer dialog for Reader or kpdf or whatever your flavor is, please note that Page Scaling should be set for none. You want the lines to go all the way to the printable margins.
b) Note that mountain folds are signified with dash-dotted lines, valley folds by dashed lines. (For those unclear on the distinction).
Step 2: Mountain Fold the Top and Bottom of the Sheet
(Yes, the rightmost part of this is marked a valley fold -- you may safely ignore this. We'll be reversing it shortly.)
b) Rotate your paper 180 degrees and mountain fold again.
Origami is all about symmetry and repetition. So am i. (I am so.)