If you dress like a cow, you'll get free food today at all Chick-fil-A restaurants.  It's the 13th year the fast food chain has celebrated its Cow Appreciation Day with a free meal for anybody who comes into the restaurant dressed like a cow.  "Cow-spotted" accessories even count.  

Chick-fil-A-dot-Com has a full list of locations offering the promotion. 

Photo: Getty