@melaninpony online there are a bunch of places that you can buy bulk foods, and have them shipped to you. Shipping and item prices vary, but should be cheaper than regular grocery store prices. One of the places I looked at said that shipping was only $5 for orders over $75.

If you can budget for a big bulk purchase, it would probably be worth it to get a bunch of bulk foods at once, because it would probably take a while to go through it all.

Just make sure you have good containers.