I love line dancing. All the dances are just different combinations of a few dozen basis steps. You don't need a partner to do it. You can do it anywhere you've got music. It's good exercise. And as long as you're not trying to impress the ladies at Billy Bob's, it doesn't really matter if you look like an amateur newbie.
When I do it, I look like the guy in this video
https://www.youtube.com/watch?v=r4Uou0GHVNQ
but in my head I
think I'm dancing like his daughter. Which raises the question: Why does she dance so much better than her father?
One of my favorite dances is Footloose. In this instructional video the full speed version starts at 4:24
https://www.youtube.com/watch?v=bZzmMlMUhOs
And proof that having two left feet doesn't keep you from dancing next to someone who can actually dance:
https://www.youtube.com/watch?v=UkAaw2TpRJA
Tying this back into simple living: Line dancing is fun, easy, doesn't require fancy dancing clothes, and there's plenty of free tutorials for it on YouTube. How simple is that?