Abstract: A method for retaining a stack 1 of removably mutually connected pre-formed plastic bags 2, e.g. in supermarkets, comprises supporting the stack in a dispenser in a laterally (side-to-side) folded-over condition thereby presenting a spine of the fold, with the spine of the fold presented so as to be accessible to be grasped between a thumb and fingers of a person seeking to remove an individual bag 2 from the stack by pulling in direction A. The stack includes a block of lips 3, to which each bag is connected via a line of weakness 8 defining a rim 9 of the bag. A dispenser for dispensing plastic bags in accordance with this method is also described and claimed. The dispenser can suitably include a cantilevered shaft passing through the block of lips 3 via a through-hole 5.