I have an old couch on my stoep.
I put it outside for when I have visitors as we entertain a lot, and since its been outside Thelma and Louise have annexed it for themselves.
When I go outside, or get home from being out, the girls meet me at the gate and as I open the gate I point and tell them to get on their couch. They run and jump onto the couch and then wait until I call them to come to me again. Its so comical to see how they watch me around the wall! I have yet to train them to stay on the couch when visitors arrive, but we're working on it.