Why Can’t You Wear White After Labor Day?

(via mental_floss)  Wearing white in the summer makes sense. Desert peoples have known for thousands of years that white clothing seems to keep you a little bit cooler than other colors. But wearing white only during the summer? While no one is completely sure exactly when or why this fashion rule came into effect, our best guess is that it had to do with snobbery in the late 1800s and early 1900s.