bag holding apparatus is disclosed comprising a foldable structure which permits the attachment thereto of reusable plastic or paper bags . a planar member is foldable into a back member , side members hingedly rotatable into a perpendicular position with respect to the back member on each side thereof , and a top member hingedly rotatable down onto the top edges of the side members . alternative means are formed into the side members to allow the attachment of the reusable bags to the foldable structure . one alternative means comprises contoured cutouts in the side members whereby a reusable bag having handles attached thereto may be secured to the cutouts in the side members . another alternative means comprises snap means whereby a handless bag may be secured to the side members with the thickness of the bag being captured between a raised protrusion which snap fits within a hole .