I spent the morning driving 75 screws into my subflooring. There was no appreciable difference in the creaking.
75 screws and IT STILL CREAKS.
I am so frustrated! I don't know what else to do except have the subflooring replaced. It will be at least two weeks before I can do that because I have meetings and events at work. So I get to live with bare plywood floors while my lovely new flooring sits in boxes. UGH.
The silver lining is my new washer and dryer are working well.
And I'm looking forward to the solar eclipse tomorrow. It will be more than 90% of totality here. If there aren't too many clouds, it should be a spectacular sight! :)