I gargled a lot with warm salt water before bed, and my throat does indeed feel better this morning. Not back to normal, but much better. Now I'm getting head-cold symptoms (?!) though - stuffy nose and all that. wtf?
When I went to bed, I opened the kids' doors a bit to let some more cool air in, and it seemed to work too. House is pretty comfy this morning, and nobody seemed to have much trouble with coughing. 90% humidity, yay! (When they say "moist air," they're not kidding)
Was going to add more but it's already time to go. Later.