I have to go against the majority opinion on this, at least for the conditions where I live.
It gets hot, windy, and we probably won't get any rain for the next 3-4 months where I live. I have to fine spray mist with plain water every other day. My plants love it, and everyday they get bigger and better. If I didn't do this, all the dust that gets kicked around in the air settles on my plants and clogs everything up. So for me, it's important that I spray lightly every other day.
I'm like Medusa. Every thread I touch turns to stone.