A unitary blank is configured to be assembled into a portable carrier. The unitary blank includes a bottom panel, a plurality of side panels connected with the bottom panel, and a top panel connected with one of the side panels. The unitary blank also includes a carrier divider panel connected with one of the side panels. The carrier divider panel includes perforations such that the carrier divider panel is detachable from the side panel and configured to be inserted into an interior of the portable carrier formed by the bottom panel, the plurality of side panels, and the top panel.