I will show you how to make a 3-pocket travel bag that you can carry your charging cables, battery pack, and/or USB sticks. Here's what you need:
The measurements of the front pockets are 4 inches (bottom), 1.5 inches (middle) and 8 inches (back pocket).
First use a few sheets of paper to get an idea on how the bag layout will be.
For this project, I've added an extra inch on my fabric in case the pieces are not the same width. It can be trimmed later on.
Cutting the fabric: