Just because summer is over doesn’t mean it’s time to put away your sunscreen. If you’re in the know about SPF, you’re probably well aware of the fact that you should be protecting your skin year round, but did you know it’s also important to wear sunscreen when you’re flying? Yep, you read that right. If you have a handful of items you always like to fly with — whether it’s an eye mask, a neck pillow, or an entire in-flight skin-care routine — you’re going to want to go ahead and add SPF to that list. Sun exposure can actually be worse when you’re in the air, which makes…