This DIY folded paper wallet will hold over ten credit cards and several bills, yet is only 1/4" thick and will easily fit in a back pocket.

Step 1: Assemble Your Materials

Materials needed

1) 9" x 12" piece of heavy paper (the front 1/2 of a manilla envelope works well)
10) credit cards (or however many you will need to carry)
1) pencil or pen

Step 2: Fold Sheet in Half

This will give you a guideline for the center of the sheet

Step 3: Unfold

Unfold- the crease should be pointing up as in the photo

Step 4: Fold to About 3/4" to 1" From the Edge

Fold to about 3/4" - 1" from the edge

Step 5: Fold Back So New Fold Meets the Center Line

Fold back so new fold meets the center line

Step 6: Repeat Last 2 Folds for Other End

Turn paper aound 180 degress and repeat the last 2 folds for the other end; You should end up with a fanfold in the exact center of the paper as in the photo.

Step 7: Not As Tricky As It Looks...

Unfold just the center of the fanfold to get the compound fold shown in the photo.

Step 8: Turn the Paper Over and Fold the Bottom Edge

Turn the paper over and fold the bottom edge up about 1 1/2"

Step 9: Insert Cards

Insert your credit cards under each side of the center flap; I'm using 10 here, 5 on each side. The cards will act as a template to determine the final size of the wallet.