WD-40's signature function is lubricating creaky hinges. Spray it on a squeaking door hinge, drawer, or otherwise to make opening and closing it go smoother, and quieter. If the problem at hand is that the hinge is caked with dirt or dust, WD-40 can fix that, too.
WD-40: Your Home's Ultimate Multi-Use Marvel

Odds are, you already have a can of WD-40 in the pantry or under the sink. If you only break it out once in a blue moon though, then you're missing out on this super product's full potential. This multi-use must-have is a cleaning and home maintenance powerhouse.
The "WD" in the product's name stands for "Water Displacement," and at its core, that's what WD-40 does. However, it is also effective at degreasing and can act as a solvent. It's taken 40 iterations to get the formula just right (hence WD-40), and the company behind it has never revealed exactly what's in it. It's a bit of a mystery, but it works like a dream.
Keep this spray away from appliances with heat and from coming into contact with food, as it is flammable and non-edible. Other than that, the home is WD-40's oyster. Here's how to use WD-40 around your home.
Eliminate Squeaks
Remove Stickiness
Duct tape, stickers, labels, and stepped-on gum are no match for WD-40. Spritz on some to de-gunk any sticky residues or make it easier to detach something that has been stuck on.
Remove Stains
Grease stains can normally be a nightmare to remove, but WD-40 makes cleaning up these messes almost too easy — it also works well on things that have a waxy substance, like crayon and lipstick.
Clean Garden Tools
Spray on WD-40 to remove dirt and grime from lawn and gardening tools. It will also work to prevent rusting, and it's safe for any type of garden tool because it evaporates quickly, so you don't have to worry about it hindering plants.
Remove Mildew From Metal
WD-40 can revive metal that has begun to mildew — a common problem at the bottom of a refrigerator, where other cleaners often fail to do the trick.
Protect Pipes
Spray WD-40 on your pipes as a protective coat that can help prevent a pipe from bursting. In winter, it can also help pipes avoid freezing by dispersing any moisture that builds up there.
Repel Pests
WD-40 will also drive away wasps, snails, and slugs — it contains mineral oils, which are known to repel insects. Spraying it around a potted plant keeps bugs from coming to that area.
Bring Life To Artificial Plants
Artificial plants may benefit from WD-40's charms, too. Spritz on just a little and polish with a rag or cloth to make the leaves of artificial plants shine, giving them the illusion of being real.
Protect Outdoor Furniture
Outdoor furniture rusting is a tale as old as time. Coat iron pieces with WD-40 to get ahead of the rust and maintain the comfort of your outdoor living areas.
Conceal Counter-Top and Floor Scratches
Ceramic tile, marble, and linoleum surfaces are beautiful, but homeowners may avoid them due to fears of chips and scratches. WD-40 can't completely fix or prevent these things from happening, but it can camouflage the look of any scratches so you can show off your floors and countertops worry-free.
Remove Nuts and Bolts
Similarly to how it works on door hinges, WD-40 can also come in handy for lubricating nuts, bolts, as well as screws and nails that need to be removed. In addition to greasing up the parts to make them easier to pry out, the product will also tackle any rust keeping these pieces in place.
Protect Good Silver
WD-40 can also protect heirloom candlesticks and picture frames from tarnishing. Don't put WD-40 on anything that will come into direct contact with food, though — silverware and silver serving platters can't be helped by WD-40.
Clean The Car
This product has proved to be a lifesaver all over the house and into the lawn, too. Both inside and out, WD-40 can be used to deep clean your car. Use it before scrubbing the exterior to melt away dirt and grime, then spray it inside, especially if you have leather seats, to make the interior look good as new.
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