You can kind of tell from this view of the inside how I made a million pockets, all designed for something specific to place in them. I hate losing things inside of my bag. This way, everything is organized and easy to find. I also sewed in a trigger hook on one side of the bag to hook my keys onto, so now I never have to search for them!
And here's a view of the back. Two belt loops on the front, two on the back, and I just tacked the belt on with a needle and thread in a few places so it would stay in place.