Creating a self-sufficient space will eliminate stress for both host and guest. If you can spare an iron and board, put a handy caddy in the rooms' closet along with empty hangers and a disposable laundry bag or two. If there are no spares, install the caddy in a common area—like the laundry room or in a linen closet—and point out its' location to guests at their arrival.
Shown: Deluxe Board Holder & Iron Caddy
; about $30