During Katherine's last trip, I took the cat bed we bought last summer up to her office to give Emily something to curl up in with her self-warming cushion AWOL. I left it on the futon. When Katherine got back, she banished it to the corner of the room, intending to remove it completely when she had a chance.
The cat bed stays -- Emily likes it too much. She likes curling up on Katherine even more, but the bed makes a nice change, especially Katherine doesn't stay put like a devoted human should.