Abstract: A folded gusseted plastic bag has a first side gusset formed by first, second, and third longitudinal folds, a second side gusset formed by fourth, fifth, and sixth longitudinal folds, a seventh longitudinal fold being on a side of the bag containing the first, second, and third folds and forming a first folded bag flap, and an eighth longitudinal fold which is on a side of the bag containing the fourth, fifth, and sixth folds, the eighth fold forming a second folded bag flap. The folded gusseted bag also is folded into a total of at least eight contiguous plies. A roll of the folded, gusseted bags includes a continuous web of the folded, flattened bags joined along perforated severance lines. Preferably the perforated severance lines further comprise a centrally-located slit.