Baggage labels, also known as luggage tags, are small pieces of paper or plastic that are attached to a piece of luggage to identify the owner. They usually contain the name and address of the owner, as well as other information such as flight numbers and destination. The term 'baggage labels' is often used interchangeably with 'luggage tags, ' but they are not the same thing. Luggage tags are typically made of durable materials such as plastic or metal, while baggage labels are usually made of paper or cardboard. The four-letter word TAGS is an acronym for 'TRAVELER's Acknowledgement of Goods and Services, ' which is a phrase commonly found on baggage labels.