Messengers usually maintain records of deliveries and often obtain signatures from the persons receiving the items. Most messengers deliver items within a limited geographic area, such as a city or metropolitan area. Items which need to go longer distances usually are sent by mail or by an overnight delivery service. Some messengers carry items only for their employer, which typically might be a law firm, bank, or financial institution. Other messengers may act as part of an organization's internal mail system and mainly carry items between an organization's buildings or entirely within one building.
Messengers reach their destination by several methods.
Many drive vans or cars or ride motorcycles. A few travel by foot, especially in urban areas or when making deliveries nearby. In congested urban areas, messengers often use bicycles, because this is the fastest way to travel in heavy traffic. Bicycle messengers usually are employed by messenger or courier services. Working conditions for mail clerks are much different from the working conditions for most messengers.