Dispensers for storing flexible bags and holding such bags open at an appropriate height while they are being filled with items. The dispensers include a bag container or holder means such as a spool or hook which may be adjustably mounted vertically and laterally to the dispenser frame. A suspending means corresponding to the bag container means holds the handle of the bag not held by the container means and may accommodate an extender to allow the bag handle to be held adjustably in height. Such a dispenser may also be formed to be adjustable in width to accommodate larger bags and spread them appropriately for optimal wall separation. Novel C-shaped brackets may be used to receive wire rungs on the dispenser frame to allow the dispenser to be manually removed and remounted with a single swift motion at various heights to a counter, wall or other surface. The adjustability of the dispenser allows the handles of the bags to be supported at an appropriate height above the level at which the bag bottom is supported, in order to allow the user quickly and efficiently to place items in the bag without causing the bag walls to come together. As a result, the user can fill a bag in a manner that protects delicate goods such as fruits and yet it allows maximum utilization of space in the bag.