Like the others have said leftovers are great to take - I work 2 days a week and try to take leftovers as much as possible.

If not then I usually take a sandwich and toast it - for some reason they always taste better toasted lol! Soup and a bread roll is great too. Also yoghurt, fruit, rice crackers good to snack on. My favourite is chicken and salad wraps, so yummy and healthy too.