Step 3: Pouch Surgery
Lay them face down with the open tops facing each other.
Starting at the cut top edge, cut down the sides so that the pouch on the left will be able to slide inside of the pouch on the right.
The pouch on the right can be modified so that a credit card can be slid into it also. (just cut a half inch section out of the flap that overlaps the left pouch.)
Step 4: Joining the pouches
Bring on the duct tape.......
Go sparingly (I try to use as little as possible to not cover the design on the pouch)
Don't forget to apply some tape to the inside of the wallet money slot.