Courier owner-operators are independent contractors who pick up and deliver packages for their clients. You use your own vehicle for transporting parcels; you pick up the items from your client and securely deliver them to a specified location. Some couriers specialize in documents while others pick up packages as well, up to a specific weight limit. You may also choose only to make same-day deliveries in your local area, or you may travel longer distances based on client demand. Because your vehicle is a vital part of your business, you must keep it clean and in good working order.