I was listening to Carolla's podcast the other day and he said that they make a device that:
a) disconnects power from both of them automatically when they're not in use. Dunno if you guys are aware but dryers have a tendency to spontaneously self-combust and burn down your house, even when they're not in use; and
b) disconnects the water lines from your washing machine when it's turned off. I hadn't really thought about it, but the hoses eventually get old and split open and flood your house.
I'm not necessarily paranoid but I'm interested in something like that.