I've seen people do this before, but I always seem to forget when my birthday rolls around.
There are a lot, and I mean a LOT of places that will give you free stuff on your birthday. You just have to plan it out. Usually you have to sign up or join their 'club' or whatever, but then they just send you free stuff. This one lady basically got enough food for two days but I know of several more places she could have hit up. Check out her haul. I'm going to start making a list and doing some sign ups. October 21st is less than 7 months away!