OK, I'm about to sound like a total cheapskate here, but I've done this twice and I know what I'm talking about. The key to this procedure is to view the box like you would a puzzle. Each piece allows another piece to fit precisely within a clump that maximizes the amount of pieces that you acquire. The key to this is patience. If you have the time, begin by filling the potato. Then place it within the container, and begin to fill in the spaces around its base. Then work your way up the sides until you reach the top level and fill in every bit of airspace until the maximum level is reached. Remember all the way up; puzzle.