The next best thing to WD40 is baking spray. I have used it on hinges, squeaky cabinets, and so many other things. I got my key stuck in the lock at work and I sprayed butter baking spray in the lock and it came out just as slick as a slimy snake. So if you are in need of WD40 and don't have it, try your baking spray. You'd be surprised at what it can handle.
By Gem from VA
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Creaky doors bug the life out of me. I absolutely hate to hear them. If I have run out of WD40, I get my pan spray and spray a bit in the hinges and the problem is gone.