1. Coat the underside of costume jewelry to prevent tarnish.
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When certain metals—the kind typically used for costume jewelry—come in contact with skin, the chemical reaction between skin and the metal causes tarnish. Use a clear coat of nail polish to prevent the metal and your skin from ever touching.
2. Paint the bottom of metal cans to prevent rust circles on surfaces.
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Turn each rusty item upside down and wipe with a paper towel to get rid of any dust and excess rust. Then paint the rims with nail polish. Allow to dry fully, then you can re-shelve them with confidence.
3. Cover the tips of matches to protect them from moisture.
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4. Smooth over splinters on furniture.
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5. Cover the scuffs on shoes.
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Clean the shoe or boot, and then paint a thin coat of polish over the scuff or scratch mark.
6. Paint a thin coat on screws to keep them from coming loose.
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Nail polish will act like superglue and hold those pesky screws forever in place.
Note: This also works great with those tiny eyeglass screws!
7. Dab the end of a thread so it easily slides through a needle.
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Snip off any loose thread filaments, then touch the polish brush to the blunt end of the thread. Give it a few seconds to dry, then try threading your needle again.
8. Seal an envelope.
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Nail polish is a natural adhesive, and best of all, you can use any color.
9. Waterproof and smudge-proof your labels.
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Write on each label and allow the ink to dry fully. Then paint on a very thin coat of clear or light-colored nail polish—allow the polish to dry and set before applying the label to its final surface.
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10. Fix torn window screens.
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