Join the Chik-fil-A Chicken Wave HERE. The first 250,000 receive a coupon for a free sandwich, the next 750,000 receive a coupon for a free Coke Zero. There's also a daily drawing for a $50 gift card. As of the time of this posting, the count was at 204,762.
On Labor Day, go to Chik-fil-A from 10:30 am to close wearing something with your favorite sports team logo and receive a free original sandwich.