There is a double layer of pockets on one side and two larger pockets on the other. On the side with the two larger pockets I made a very small one to fit a pen. I'm always digging for one and wanted to have a place where I can easily find it.
I have a pocket that fits my cell phone, camera, cell phone charger and miscellaneous stuff on the side with the double layer of pockets. On the side with the larger pockets, one for my checkbook and the other for papers, pictures, etc .
I didn't make a pocket for keys because I bought something that hangs over the edge of your purse and attaches to your keys for easy retrieval. I love it. Here is a picture of what it looks like.