I'm interested in any ideas about how to keep outdoor living spaces clean. I have an open deck and obviously it collects a lot of dirt and dust. Does anyone have any suggestions?

I sweep my patio often. Now I can wash it down, since it is concrete, and I do that once a week, except in Winter. On a wood deck, you can use cleaners made for wood decks. Check places like Lowe's or Menard's or even Home Depot or your local hardware store for safe products.