Delivering mail: Delivering letters, parcels, and other mail to homes and businesses Collecting mail: Collecting outgoing mail along the route Sorting mail: Sorting mail by delivery sequence and street and house numbers Operating vehicles: Safely operating postal vehicles to deliver mail Providing customer service: Answering questions about postal services and company policies Selling postal products: Selling stamps, money orders, and other postal products Maintaining records: Keeping logs to monitor delivery rates and vehicle maintenance scheduling Obtaining signatures: Obtaining signatures on registered, insured, and certified mail Redirecting mail: Redirecting wrongly-addressed mail Following rules: Adhering to postal service rules and regulation.