Create A New Drawer!
It may sound hard but we have the answer!
Place a plastic bin, the height of the space from the shelf to the top, on the shelf in your cupboard and voila, it can then be used as an extra drawer. It is much easier to get to the back of the shelf that way and, we feel sure, you will find yourself using what is at the back more often as it will be so easy to get to it.
Such a clever use of space! JOY!