90s method for sharpening scissors better than a razor!

With just 6 or 7 passes, the scissors will be sharp and ready to use.

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What to do if the scissors are very dull?
If the scissors are so dull that they can’t even cut paper, a more robust method will be necessary. In this case, a fine-grit sandpaper will be your best ally.

Place the sandpaper on a flat surface, such as glass, and slide the edge of the scissors over it, always in the opposite direction to you.

Make sure to maintain the correct angle for an optimal result. This method also works for sewing or general-purpose scissors.