I used to do this in college a bit, I’d find a way to combine coupons with in store deals to get a variety of food items either free or dirt cheap (less than a dime each).
There is a website called the penny experiment that does the same thing except the food is donated to food banks.
http://www.pennyexperiment.com/
However I live in the midwest, and I don’t think there is any overlap between the deals since I assume this is a california based blog.
I found this one too
All good info, but I don’t know how much overlap there is in locations of deals. Anyway are there other good sites to look into for this?