Another great portable and healthy snack is mozzarella string cheese. You can pick up a bag of the indivually wrapped cheeses to bring with you. If you are following low carb, they are less than 1 carb per cheese. I also love those Laughing Cow cheese wedges. So yummy! You can fill a ziploc with some carrot and celery sticks to munch on, too. You have some great suggestions though!