Originally Posted by Unregistered

There's no pressing reason to check what's in your unlocked cases right away, is there? Sure, you can't do anything about raw stuff you get when opening other people's cases, but the 'open cases' area works like a blind version of the present box, if you want to save stuff till Stage 2.

Bingo. I have a shit ton of opened pink cases right now. If I run out of raw half namins, I collect a few opened cases looking for one. I usually pick up a couple raw puddings in the hunt, but I tend to be able to use the puddings faster than the namins. Just open your cases on an as needed basis, and you should get more bang for your buck.