Should you keep the negatives? It depends on if they are the only copies you have of a particular set of photos. Cross-check negatives against your pics. If you have all the photos, you can toss the negatives. You might also want to scan some of the negatives. Here's a tutorial from Popular Photography that uses your flatbed scanner and a little DIY prowess to tackle this task.Any negatives that you're keeping should be safely stored in an archival photo box to prevent moisture or heat damage.