People are blown away when I say we spend around $100 per week for our family of 5. They are even more blown away when I tell them the majority of our shopping is done at Costco. I remember before we got a Costco membership everyone told me that it wasn’t really useful for actual groceries. I beg to differ. Here is my basic go-to $100 Costco shopping list of healthy foods that we get for our family.