I think this would be a great idea to put into the game!
When I have to load my closet it takes me forever, and also scrolling through clothes can be such a pain if you have a bunch, I think this would make changing clothes a whole lot easier
Her latest video at about 4 minutes in she says she's working on a new way that will have a grid (like suggested) that you just click on and your avatar changes. "There will be no arrows to change your clothes or hair or face....you will be able to get to what you want immediately" exact quote from Amy from her video