It would be cool if we could AT LEAST do "one-time" trades at the rewards screen. ie. : at the end of a strike / daily / weekly / Nightfall, when you get a helmet for another class that you don't need, and your friend gets a weapon that he doesn't want, you could do a one-time mutual swap on the rewards screen. That would eliminate the possibility of profiteering, and allow fireteam buddies to help each other out from time to time with rewards. I think my idea is the bees knees.