We separated the twin beds (which were joined into a giant double) and stood them on end with the mattresses piled on top of them and the pictures and linen from the linen cupboard on top of them, and covered them with sheets. We moved the linen cupboard to the same end of the room, then rolled up the carpet and underlay as far as they'd go.

We now have a new doorway, a new wall, and quite a lot of fresh surfaces within the room!