Dash rattles/squeeks?

If you’ve got rattles and squeeks that are driving you crazy and they don’t go away by tightening all the screws up and foam tape and all that, spray a little wd-40 on the head of all the screws that hold something plastic down. My thinking is as the plastic ages and dries out the head of the screw will squeek when the plastic flexes and make the car sound like a POS. Anyway I had my dash out yesterday to fix some things and there are a ton of screws holding the dash together that you can’t get to without pulling it, so it’s a lot of work but it does make a huge difference.