Oops, it doesn't look like 'wear red a day' is a national day..

Other days

buddy

Buddy Day
self care

Self Care Day
camera

Camera Day
law

Law Day
lumpy rug

Lumpy Rug Day
pampering

Pampering Day
blanket fort

Blanket Fort Day
first love

First Love Day
kale

Kale Day
believe

Believe Day