So you saw Captain America: The Winter Soldier. You have been keeping up with Agents of S.H.I.E.L.D. You know the Marvel Cinematic Universe has been going through some pretty big changes lately. You might be a little perplexed then to learn about a promotion running now between Marvel and CafePress. Is it too late to join S.H.I.E.L.D.? Find out after the jump.