Have a really busy public restroom? A toilet paper dispenser that holds two rolls takes up more space, but it may be more cost-effective than a single roll dispenser. It won't need to be replaced as often, so it saves on labor as well. Some types of roll-style of dispenser even lock after a few turns. This design helps prevent excessive paper use, which can be a problem with the toilet paper dispensers that use folded sheets rather than rolls.