Those who bake, like Mr. FS, sing the praises of King Arthur flour. It is expensive, though it sometimes goes on sale around the big baking holidays, like Thanksgiving.
What's a frequent baker to do? Get it where the bakers get it: from a wholesale supplier. What's the catch? You need to buy it in 50 lb sacks.
First, go to the King Arthur website. Then, go to the bottom of the page "For Professional Bakers."
Then, find your local distributor. Mine is Koerner and Company in New Orleans. Yes, they will sell to individuals. A 50 lb. sack of King Arthur is around $20.00, depending on what kind you choose.
Some things I cannot buy because of the quantities required: no, I cannot buy a 24-pack of yeast. But, oh, what a wonderful gift for Frugal Son: a tub of duck fat!
Bon appetit! Do you have any wonderful sources for ingredients?