The Money in the Bank briefcase is an almost sure-fire way to win the WWE Championship or World championship. Established at WrestleMania 21, Chris Jericho proposed the original ladder match, where six men would compete to retrieve the briefcase in which there would be a guaranteed title shot at any time, anywhere over the next 12 months. Edge won the first Money in the Bank ladder match, and then he held the briefcase until January 2006, when he cashed in on John Cena, immediately following his grueling yet successful title defense inside an Elimination Chamber. Edge won the WWE Championship and the Money in the Bank match was back by popular demand at WrestleMania 22, where Rob Van Dam retrieved the briefcase and cashed it in on John Cena at One Night Stand. For WrestleMania 23, the match was expanded to include eight men, and Mr. Kennedy retrieved the briefcase in that match; however, he lost the briefcase to Edge a couple months later (or less) and Edge cashed in on Undertaker to win the World Heavyweight championship.
At WrestleMania XXIV and WrestleMania XXV, CM Punk won the Money in the Bank match, and both times he successfully cashed in the briefcase: first on Edge, then on Jeff Hardy. Jack Swagger cashed in the briefcase on Chris Jericho two days after WrestleMania XXVI on Smackdown.
By 2010, the Money In the Bank concept was so popular that WWE created an entire pay-per-view around the match. In the first pay-per-view, Kane won the Smackdown match and cashed in on Rey Mysterio later that night to win the title. The Miz won the RAW match and cashed in on Randy Orton the night after Survivor Series, several months later. Another Money in the Bank pay-per-view is scheduled in 2011, and WrestleMania XXVII was the first event since its creation to not host a Money in the Bank match, which means (A) the concept is wearing thin, or (B) WWE is dedicated to annual Money in the Bank pay-per-view events.