@resjudicata Look for flour on sale, you can get 5 lbs of flour for a dollar on sale, at most $2.
Same with yeast, I bought a huge bag for $4 on sale and you need 2 1/4 tsp each batch.
Cheese I also buy on sale, our Rayleys has two pound bags for $5 so I stock up. You don't need as much...