Imaginary holidays are a dime a dozen these days. Of course, it doesn't even cost a dime to score a shake on National S'mores Day on Aug. 10.
Two locations of Z-Burger are observing this sacred, sacred holiday by giving away a free s'mores milkshake to any customer who says the password "S'more Z-Burger please."
Just head to Tenleytown (4321 Wisconsin Ave. N.W.) or White Marsh (8145 Honeygo Blvd., Nottingham, Md.).