Much of the 99p store stuff is cheap crap made for them like those bargin cakes that you also get down the market. Some stuff like the coffee or tuna you may even get cheaper in supermarket basic ranges - we know their really is a credit crunch because even Waitrose have a basic cut price range.
However there are some real bargins like the end of line two litre bottles of those great Lloyd Grossman Sauce range. The 1.5 litre cartons of 22 fresh pressed Spanish oranges. Or three pairs of socks - Sainsburys charge £5. Note how supermarkets charge rip-off prices for blank dvd discs when the 99p store sells 4 in a pack.
99% of their dvd titles are crap but again occasional gems like Scum 2disc drama docu on Feltham Remand centre and Italian Horror classic Deep Red.
the 99p star have just applied for a drinks licence to sell Chav beer /lagas and end of line wine, wow.