a reusable produce and bulk - item shopping system and related business method designed to eliminate the need for using plastic film bags in retail sales of produce and other grocery items sold by weight . disclosed are a caddy and a plurality of relatively smaller , reusable bags that fit neatly into the caddy . the caddy and bags are preferably sized and shaped to allow close engagement between the caddy and the smaller bags when the caddy and the bags are in the open position and filled . the smaller bags are of uniform weight , and the associated business method teaches several unique methods to easily and properly account for the weight of the bag at the check stand , in order to easily effect a net weight sale of the items in the bag .