When you take up the challenge of living on a food stamps' recipients budget of $7 a day, your first stop shouldn't be Trader Joe's. Plus, Costco charges $35 per annum for its memberships, so that's probably right out too. Poor people can't scrape up that kind of cash if they only get a $7 a day allotment for food.
But hey! Enjoy mocking the poor, why not, right?