A method and apparatus for selling a combination of travel tickets and consumer items to customers and, in particular, for selling international travel tickets and duty free items to international travelers. By acquiring surplus international travel tickets in bulk at discounted prices and by selling the duty free items in a way which avoids the overhead typically associated with such sales, the selling merchant is able to offer the combination of an international travel ticket and a duty free item to a consumer at a price below what the consumer would pay if the consumer separately acquired the ticket and duty free item from third parties. In one implementation, the selling merchant offers the consumer a free duty free item upon purchase of an international travel ticket, or vice versa. In a preferred embodiment, both the consumer and the selling merchant employ computers communicating over a computer network to carry out the inventive method.