I used to work in a small pro lab in Melbourne (Australia), where all colour negs were cut into strips of 4 (as they fit in the wallets nicely), but as a rule for cutting negs, hairdressing or dressmaking scissors are good, and we always cut from the end of the roll to the start. This way you won't end up with a tiny strip of 2-3 frames (which lab machine printers hate!)because the last strip cut always has the blank film at the start, so you can cut it to the same length as say a strip of 5 or 6 or whatever you cut your strips to. Make sense? For my own B&W negs I use polypropolene sleeving which is expensive, but great - see through, dust free and archival.(posted 8608 days ago)