I mostly leave my very fine and very straight hair to air-dry.
I see there are more products these days that claim to make air-dried hair look better, though many are geared towards curly hair, which I most definitely don't have, unfortunately.
Frizz isn't really a problem for me. I'm more looking for something I can whack onto damp hair that will give at least a little more bounce and volume without having to use a hairdryer. If you've used something that sounds like this I'd love to have your suggestions.