I searched through various products going to the web site of each one to see how they processed the food, where the ingredients were coming from, and checking for BPAs.
Annie's products at their web site there is also a store locator.
While I order our food off the internet, I have seen Annie's in our local Winn Dixie, and I'm told that Target carries it, and if you ask Walmart to carry a brand they will. Beware that they will cost more purchased at a store, Green Polka Dot Box is definitely the cheapest. However, they do not carry all the Annie's products and are sometimes out. Making changes is not easy, but hopefully I have helped ease the change a little.