Do you check the weekly grocery sale ads? I didn't used to, but I definitely do now. Meat, milk, cheese, cereal, & more have gotten so expensive! I try to only buy some of these items on sale if I can.
Anyway, I used to get these incredible emails that would highlight some of the main grocery items on sale at the major grocery stores (in AZ) for that week. Then it also had recipes & menu ideas according to what was on sale. Well, suddenly my emails stopped due to the high volume requests. So, they started a new website with all the valuable information. I forgot about the site and just found it today. WOW! It's amazing!
It also has info regarding 3-month Food Storage.
The First Presidency of The Church of Jesus Christ of Latter-day Saints has counseled us to, “Build a small supply of food that is part of your normal, daily diet. One way to do this is to purchase a few extra items each week to build a one-week supply of food. Then you can gradually increase your supply until it is sufficient for three months. These items should be rotated regularly to avoid spoilage.” All is Safely Gathered In: Family Home Storage, 2007
The site is called Sister Savings. (I also added the link in my sidebar - the fancy smiley face!)