Free Kids Meal at Chick Fil A

I'm pretty sure that every Chick Fil A does this.  They have one night a week where when you buy one meal combination you receive a kids meal free--all day long.  The one out in Surprise is on Mondays. I also know that the one over by Arrowhead Mall is on Wednesdays.  This makes for a somewhat more affordable meal!  Is it just me or does Chick Fil A always cost an arm and a leg?