I modified the instructions for the criss cross pocket card to make a double pocket card.
It seemed such a waste of cs to have the back be a double layer and nothing else, so I cut the inside back down about 1 1/4 inches to make it shorter than the outer back layer. This gave me two pockets to work with. Clear as mud?!
I made the insert for the second pocket smaller than the first for variety, but they could both be the same size if you wanted.
I also modified the original instructions to use two different colors of cs to make the pocket, instead of using both halves of the same piece of cs.