A waste package storage device comprising a storage space closable at each of an inlet end and an outlet end and arranged such that when the inlet end is open for receiving a waste package, the outlet end is closed, the waste package storage device further including an actuator operable to simultaneously actuate closing of the inlet end and opening of the outlet end, and vice-versa, characterized in that: the inlet end of the device comprises a first pair of parallel rollers (8502, 8503), each having a respective first channel (8504, 8505) therein and in the receiving position both first channels face upwards and towards each other for receiving a waste package, wherein the first pair of parallel rollers (8502, 8503) are relatively moveable between an open, spaced position and a closed, abutting position by operation of the actuator; the outlet end of the device comprises a second pair of parallel rollers (8507, 8508), each having a respective second channel (8509, 8510) therein for receiving the waste package, wherein the second pair of parallel rollers (8507, 8508) are also relatively moveable between an open, spaced position and a closed, abutting position by operation of the actuator, and wherein the second channels are configured to meet the first channels as they move relatively; and in that: each of the parallel rollers of the first and second pairs are rotatable in opposite angular directions in order to provide said relative movement, wherein rotation of the parallel rollers of the first and second pairs by operation of the actuator moves the received waste package away from the inlet end of the storage space. the inlet end of the device comprises a first pair of parallel rollers (8502, 8503), each having a respective first channel (8504, 8505) therein and in the receiving position both first channels face upwards and towards each other for receiving a waste package, wherein the first pair of parallel rollers (8502, 8503) are relatively moveable between an open, spaced position and a closed, abutting position by operation of the actuator; the outlet end of the device comprises a second pair of parallel rollers (8507, 8508), each having a respective second channel (8509, 8510) therein for receiving the waste package, wherein the second pair of parallel rollers (8507, 8508) are also relatively moveable between an open, spaced position and a closed, abutting position by operation of the actuator, and wherein the second channels are configured to meet the first channels as they move relatively; and in that: each of the parallel rollers of the first and second pairs are rotatable in opposite angular directions in order to provide said relative movement, wherein rotation of the parallel rollers of the first and second pairs by operation of the actuator moves the received waste package away from the inlet end of the storage space. each of the parallel rollers of the first and second pairs are rotatable in opposite angular directions in order to provide said relative movement, wherein rotation of the parallel rollers of the first and second pairs by operation of the actuator moves the received waste package away from the inlet end of the storage space.