Abstract: A method of improving industrial production comprising the steps of arranging a plurality of full containers in a transporter, the container being arranged in a predetermined number of stacks of containers, each stack containing a predetermined number of containers, transporting the containers in said configuration to a destination, unloading the containers from the transporter and thereafter introducing the same, or substantially the same, number of containers into the transporter as were transported thereby to said destination but said containers being arranged in a plurality of columns of nested containers, the number of columns being less than said predetermined number of stacks and the space not occupied by the columns of steel containers being utilized to transport other articles to a further destination.