There is a national day for just about everything under sun. They range from the common, such as, Grandparents Day, that even gets a mention on most calendars, to the uncommon celebration of the rather morbid National Life Insurance Day. Over the last couple of years we have added celebrating these days into our homeschool. We mostly focus on the days that are food related or one that can be celebrated with food. The first reason for the food focus is our co-op is teenage boys, who are always looking for something to eat, and secondly, teenage boys are not interested in making a craft that goes along with a theme. There might be one, or maybe even two out there, but I don't know them.
In the last few days we have celebrated National Milkshake Day, I recommend peanut butter
and National Cheeseburger Day.
There are lots of websites out there to tell you what day it is, here is one to get you started National Day Calendar. I can tell you, I have my eye on the up coming National Ice Cream Cone Day (19th) and National Corn Beef Hash Day (27th).