All these questions about how to care for the guitars represent individual choices, and of course, there's no right or wrong. Pick your poison!
But here's what I do:
If I'm not playing them, they stay in their cases. Electric guitars get a D'Addario humidipak in the case. Acoustics get the set of three. I find that setups stay good nearly forever, the guitars don't collect dust and electronics-screwing, gooey, cooking-oil evaporates and other gunk that most houses circulate in the air only to stick to the guitars, and...yeah, all the stuff Bob Taylor talks about when he says that as pretty as they are, the best way of caring for guitars is to keep them cased is true.
Then, too, I like to hang artwork meant for walls instead of hanging instruments. The drawback is there are cases that need to find unobtrusive spots to live, not always easy unless you have a lot of closet or storage space.
But the practical stuff matters more.