A process for holding a bag and a bag holding device. The device includes a box-like structure having a pair of side walls joined to a pair of end walls along corner score lines. The structure has a corner structure defining a notch in at least two of the corner score lines. Elastic band encircles the outside of the box-like structure while residing in the notch. The process comprises the steps of notching the corner score lines of a collapsible box-like structure having a pair of side walls joined to a pair of end walls along the corner score lines; inserting the bag into the mouth of the structure; overlapping the periphery of the mouth of the bag over the edge of the mouth of the structure; encircling the overlapping portion of the bag with the elastic band; and lodging the elastic band over the overlapping portion of the bag and within the notches at the corner score lines so as to hold the bag in an open position and prevent displacement of the bag from the structure.