1. Prevent jewelry from tarnishing 2. Prevent a run in a stocking from getting worse 3. Change color of costume jewelry 4. Store your nail polish upright in a box with polish on the top to indicate color 5. Paint your keys 6. Paint your shoes 7. Fix a scratch 8. Thread a needle faster by adding top coat to it 9. Seal an envelope 10. Paint your bobby pins MORE DETAIL: HERE.