Let's say the promotion of sports. You have to bet for 20 days on anything and collect certain points that are calculated according to the odds on the sport-bet you played. Points are added up each day and are only valid for the first sport-bet of that day, and there is a minimum bet such as $3 or something. Any player can skip a day if they forget or something, so they still have a chance to participate. This would bring sports betting closer and get people interested in competing.