Organization Help

I am in dire need of assistance. This is a view into Hollie's closet. Both of my girls have a ton of bags/purses and I don't have a clue how to organize them. I'll get them half organized and then they just throw the system to the curb. (That's how it goes, right?!)

So as you can see to the left in the 1st picture, there is a purple...we're going to call it a bag/purse organizer because that is what I have used it for and can't think of the proper name right now. Would this be more beneficial to put on the back of her door? Or on the wall where the door meets up with the wall when it's opened?

And, if your suggestion is to put it on the back of the door, then where do these lovely shoes go? I thrive with organization but struggle with getting from Point A to Point B.

Please help...my girls' rooms depend on you!! :)