I like both those ideas beth and Graeme. As well as ordering their food, they have to order other bits and pieces. Them assembling their beds would be hilarious. It's a shame they'd have to do it all in one day. You could perhaps have them on mattresses for the first night, and by completing mini-tasks they'd get the tools they needed to assemble their beds properly.
It might be quite nice if halfway through the show, completion of a task meant they were allowed to send their sheets and clothes to get a proper wash in a proper washing machine. Except they'd probably get nicked.