My cereal bars are pefect snack food [sulk]! We get a 6 hour train to my mum so I am practised in snack food! We take apples (bite for mummy, bite for Munch), satsumas, raisins (in the box for an extra 10 minutes peace) Banana cereal bars, cold potato wedges, cream cheese sandwich, humzingers, chick pea burgers and those veggie nuggets (Fiona's) after being chilled oevrnight are great.