Don't forget to take water! It makes it easier to pass up the combos at the fast food places!
Some of your usual good snacks will travel well. We also make up sandwiches that we like and snack on them. I cut them into 4's so I can snack on 1 piece or have 4 pieces for a meal (sounds like a lot, but its not!)
I try to take air-popped popcorn with a spritz of butter flavoring and a little salt for my 1 indulgence.
Have a safe and FUN trip!!!