Does anyone have any tips for fixing floor squeaks? My floors throughout the house are hardwood tongue and groove on top of horizontal one by eight subfloor. I’ve tried 6d 2” finishing nails, with no luck. The Lowes and Depot sell the Squeeeeek no more kits; no luck. I could have left the green shag carpet, as it muffled them pretty good, but man, it gave me nightmares about Disco music. There are too many squeaky boards for mechanical repairs like nails anyway. I thought about sanding and polyurethane clear coat might soak down into the cracks, but I don’t want to do all that work for no good results. Plus I’m too out of shape for that job. We’re trying to get the joint ready to sell and those squeaks would be a real turn off. I’d have the joint carpeted again but the floors are really nice for 70 years old, plus somebody else may not like it and I would have wasted my money. Anyone with this experience know anything? Thanks!