A can of WD-40 spray.
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The Right Way To Use WD-40 Silicone Spray To Fix Squeaky Door Hinges
If you are dealing with squeaky door hinges, WD-40 Specialist Silicone Lubricant can provide the ultimate relief as it is specifically designed to address this common problem.
For best results, shake the can well before application to combine all the active ingredients together, especially if the spray hasn’t been used for several months.
Then, with the straw flipped up, aim directly at the hinge pin, and cover it with the lubricant. The formula should dry in seconds, leaving behind clean, squeak-free hinges.