morrisons do an eat smart snack selection....like a multipack of 6 crisps for £1.19 i think it is.
you get 2 x bacon flavour thingys,2 x pickled onion rings and 2 x salt and vinegar sticks.
i find they hit the spot when i feel like a crispy nibble and they are very low synned at 1.5syn for onion,2 syns bacon and 2.5 syns salt and vin.
obviously smaller bags but more than enough to hit the spot i find.