Performing a nightly skincare routine is great…but have you ever considered the importance of just when you start? Surprise — it’s time for a pop quiz! When it comes to your nighttime skin routine, you do it: A: Right before I climb into bed (unless I’m too tired). B: What nighttime skin routine? C: When I shower — two birds, one stone. D: Um, I do it at night. Because it’s my nighttime skin routine. E: None of the above.…