Day Thirty One

Did you know that it is considered correct grammar to write out only the numbers one through nine? Seriously. I looked it up on the internet.
I figured writing the days out sans punctuation would keep everything looking clean, but now there will come a day when I will have to look at Sailor and say, "When I was your age, we had to use something called a hyphen to write that!"

She's going to think I'm so cool.