Dapper Day is coming to Disneyland, Walt Disney World, and Disneyland Paris: it's a day when masses of well-dressed, nattily turned out happy mutants converge on Disney parks to enjoy a day in fine style. The organizers get good deals on discounted admission tickets and room-blocks at the on-site hotels, but these are running out soon, so book now! Over 10,000 people took part in the spring 2013 events.
(Thanks, Justin!)