sounds like nothing more than a todo list. You first have to figure out how to convince people to enter in tasks and things to do regularly, which is a problem with any todo list.
Also, unlike a todo list, a "chore" only requires 3 inputs: 1, Name; 2, Description; 3, re-occuring{yes/no}. Sometimes users feel overwhelmed by the amount of options they have when using task managers. ChoreRoulette would do away with this feeling by offering a simple clean 3-input interface.
Any other suggestions/comments
P.S. Yes I know convincing users to input data is always an uphill battle. I'm hoping my simple quick way of inputting a chore will solve that.