Credit cards, identity cards, access cards, etc.... would you prefer it if they were half the size they are now? Why or why not? How many cards do you keep in you wallet?
Since recently losing SOME of the key cards from my key chain but not all of them, I've come to realize they are more convenient but not necessarily secure there. I don't want my important cards to be any smaller unless someone creates a whole new format for them. I can't imagine what that format might be but I'm sure an inventor will come up with something.