I keep getting things that I don't need from nightfalls that I already have for every character, then I have to either delete it, or fill up my vault, both these ways will fill my vault up, say I got plan c from a nightfall, all my characters had it but I can't put it in my vault because it's full and my upgrade materials menu is full, what do I do. If Bungie wants to make more vault space people will just fill it again, I could give that plan c to my friend who needed it and he could give me a gun in return, then he will use it and my vault won't be filled up by guns that I don't need.