I shop at Save a lot for all my staples. Flour, sugars, sour cream, canned goods, frozens. I can get out for less than fifty bucks and have a stocked pantry.
They carry fewer name brand items, but be sure you know the retail value to make sure it's a real deal.
Their store brands are very good...even sodas. In fact, their canned corn is better than any name brand I've tried.
It is much like an Aldi's environment, but they now take credit/debit as well as cash and check.
Try it out, you may suprise yourself.