Please note: this is my first instructable.
Step 1: Materials and Pattern
You can either sew the wallet together (which I am doing), or tape it together with packing tape or duct tape or another suitable tape.
This is the pattern, all measurements in inches. No seam allowances are needed.
If this image is unreadable:
the main body is 6 x 7.5
the small flap is 0.75 x 2.5
the large flap is 2.5 x 4.5