1. What, if anything, do you HAVE to buy the name brand of?  Talking about food products.2. What do you think is a waste of $ to buy the name brand of?1. For us, we have to buy Hellman's mayo, Heinz Ketchup, Gulden's mustard, Daisy sour cream.  I'm sure there is a ton of other stuff, but condiments as a whole have to be name brand.2. Dairy stuff is usually a waste of $ for name brand.  Except sour cream.  For some reason I only like the Daisy brand.  Everything else, milk, butter, ricotta, etc is always store brand.