I haven't made that many quilts to run out of room!
But I do like the idea of making a hanging quilt headboard for the bed:
http://2.bp.blogspot.com/_6Ifj_RPqmu...8_quilt_xl.jpg
Or I have seen a quilt actually used to cover an old headboard, with buttons and everything, a bit like this
http://pdb1.mydeco.com/product_image...3f45928206.jpg