Inspiring Quilters, Stitch by Stitch
I would say give her the computer room and take over her room! Just stick a futon couch and an armour in the computer room and that should be enough for her when she does stop by!
I only have a 2 bedroom no basement or attic house. I keep telling my girls I am taking over their bedroom when they go to college...and that is what will be in there when they come back on break, a futon and a chest of drawers, over in the corner!