Knots in necklaces and chains. Remove a Knot from a necklace or chain
Necklaces and chains often get little knots in them and you can get those little knots out faster by putting the chain on a flat area, such as your desk and using a pin to pull out the chain without breaking it! Any sewing needle will work just fine.
You can add a drop or two of baby oil to help the chain move easily so you can get the knot out.