Pop-Tarts. Great Value brand can suck it (I stock groceries in Wal-mart and have a hatred of Great Value now that would take some explaining)
Great Value soda is also fail. Don't buy Great Value stuff if you aren't poor and can afford name brand (not trying to take a shot at poor people here). I personally am fine with a lot of soda brands (Coke, Pepsi, A&W, Shasta), but Great Value soda is where I draw the line. If I can't afford the real thing when it comes to soda, I'm drinking water or kool-aid or something.