Come on, being able to pick something out of your inventory should be second nature by now. You should know relatively where it is before you even search it. Like when you click the main menu button, you can already tap the friends list without even looking. You can go to your home screen on your iDevice and immediately tap Angry Birds without the home screen even loading. What we need is inventory reordering which would allow you to move around your inventory much like you would move around apps on your iDevice. Just put everything you need at the top, then the 'second nature' thing comes in. It would be much faster than having folders and sub-folders.