How-To Quiet a Squeaky Door Hinge
Squeaky doors can be incredibly annoying but fixing them is quick. Open the door fully and locate the hinge pins. Apply a lubricant like WD-40 or light machine oil to the pins. Move the door back and forth slowly to distribute the lubricant evenly. Wipe off any excess oil to prevent drips. If the squeak persists, remove the hinge pins completely, lubricate, and reinsert them.
Pro Tip: Check the door alignment; sometimes tight hinges cause squeaks. Keep your fingers away from the hinge to avoid pinching while testing.