Can't think of anything specific at the moment, liliacqueen. But I would like any task to be something that the housemates can all do together and work as a team. (Like the First Aid task and the Drum Kit task in BB2).
That's why I'm delighted that the weekly task is to be reintroduced for BB4. Much of the enjoyment from previous BBs, except last year's, was seeing them practice during the week for their task.