I can relate; I hate the daily lunch dilemma. I usually will just take a bagel and a bag of grapes. I used to do case management so I was always in my car. Cut up raw broccoli and cauliflower are good to eat while driving or wandering around town, as well. If you go the ice pack route, see if your local store carries the coconut milk yogurt. I hated soy yogurt but maaan this stuff is good! Mix it up with a quarter cup of granola and it's really filling.