There is a deep tradition in Northern European countries with Christmas calendars. Eventually, this tradition has in recent years been taken into account by various businesses. Digital Julekalender helps businesses collect names, emails and phone numbers of everyone who signs up. However, companies did not take full advantage of the possibilities. We wanted to take the concept to new heights invoving the ability to use the Advent calendar to make surveys, discount codes, quizzes and collect more information from the registrants.