What is the best way to protect your negatives from scratches and dirt?

To protect your negatives from scratches and dirt, store them in archival-quality, acid-free sleeves or envelopes made specifically for photographic materials. Keep them in a cool, dry environment away from direct sunlight and humidity. Additionally, handle negatives with clean hands or wear cotton gloves to prevent oils and contaminants from transferring. Regularly inspect and clean storage areas to minimize dust exposure.