April Fools' Day may be all fun and games for some, but only an April fool doesn't take capitalization and punctuation seriously. A handy cheat sheet for the day, brought to you by your friendly neighborhood copy editor.
April Fools' Day: April 1, a day of tomfoolery and merriment.
Via: therovingranter.blogspot.com
April fool (lowercase "f"): the butt of a joke or trick played on April Fools' Day OR such a joke or trick.
Like Sony's sweet new headphones for cats.
Via: blog.sony.com
Again, April Fools': a day.
April fool: this delightful Sprite and soy sauce concoction.
Via: niknak79.tumblr.com