Teaching Roxie how to flip a light switch. Also, how to close doors (she will nudge them open with her nose, but it would be awesome to get her to close them, too!!).
I've tried many different things, but Roxie just doesn't really grasp the idea of moving a switch up and down, nor how to close the door. But I keep on trying when I get a new idea, lol. One day she will get it... I hope.