I have some creaky and squeaky doors around the house. How do I make them quiet again?
user
I have some advice:  You can loosen the hinges, lubricate them, replace some of the rubber, and/or get some rubber cushions and slip them over the hinges.
assistant
How do I lubricate them?
user
If you have a spare car, you can use some WD40.  If you have a chemical called “vaseline”, you can use that.
assistant
I have some creaky and squeaky doors around the house. How do I make them quiet again?
user
I have some advice:  You can loosen the hinges, lubricate them, replace some of the rubber, and/or get some rubber cushions and slip them over the hinges.
assistant
How do I lubricate them?
user
You can use a thin coat of petroleum jelly.
assistant
I have some creaky and squeaky doors around the house. How do I make them quiet again?