We got bread each week and would use it to bait fish hooks to catch pigeons. We'd trade the extra pigeons for a little gas for my Svea123 stove and bread for the next week.

As for making bread without yeast, my ancestors learned me how to cook it on a hot rock. (Think matzah and passover.) We'd pick up wheat along the side of the road during harvest season amd spend the winter months using rocks to make flour out of it.