PADI is the world’s largest scuba diving training organization. While their name is an acronym for Professional Association of Diving Instructors, they are also sometimes referred to as “put another dollar in” due to the fees they charge to dive shops and divers for certifications and training materials. In order to promote membership in their Diving Society, they are offering a free, water-resistant, padded bag with membership. This is actually a pretty good deal for everyone. PADI can buy the bags at wholesale and offer their members something that may actually be worth about the cost of the membership at retail. More importantly perhaps, these bags should end up advertising for PADI in the most important place: on dive boats around the world.