How to make your own stock, for cheap.

I once was online looking at how people make their own stock at home. There is something to be said that most recipes these days require broth, and though I've found there really is no flavor difference in stock or broth, the price is still too much. I once made a grocery list and was shocked when I realized I needed something like 6-8 cups of broth. That's just outrageous! So as I said, I was looking online to see how people made stock and was very disappointed in the result. Once I did the math, I found it would be cheaper to just buy broth.

Then one day I read a post by what I thought was a pure genius. I read it again and again, then decided that THIS was the answer I was looking for and I couldn't help but wonder why I never thought about it myself!