We do that too

separate out restaurant eating from groceries. I also separate out food from health & beauty, cleaning supplies, paper products, etc. I get groceries at the grocery store, none from Walmart. I get the other stuff mentioned at Walmart

All this separation may seem like work but it helps me see what we are truly spending on each category. Basically I have a groceries category and a Wal-Mart category so it is not really hard.