A container system includes a first corrugated paper container and a second corrugated paper container. The first corrugated paper container has a slot formed in a first side thereof. The second corrugated paper container is disposed adjacent to the first corrugated paper container. The second corrugated paper container has a retaining tab formed from a side of the second corrugated paper container. The retaining tab extends into the slot of the first container so as to couple the first corrugated paper container to the second corrugated paper container.