I always pack a travel snack bag. You don't want to get stuck without snacks no matter where you go!
I'm someone who's always on the go and crazy busy, so I like to keep snacks in my car and at the office, and Cracker Jack'd is a really yummy snack that I love. I definitely am a big snacker.
Buy groceries and feed yourself, even on the road.
I carry my own food with me everywhere I go.
The key to finding protein for your snacks when you're on the go is making sure said snacks don't need to be refrigerated, don't need to be cooked, and are in convenient packaging.
While traveling, I love granola bars, trail mix nuts, dry cereal and fruit for on-the-go snacks. I also try and start the day with a high fiber and protein meal, such as whole-grain toast with peanut butter.
I always have applesauce in my fridge, and when traveling I take protein bars just in case I get hungry. They're my go-to snack.
I carry my own food around on tour; I permanently have carrier bags full of cereal and bananas.
I snack on almonds and always make sure I have some with me. I hate being hungry.
Most of the time, I am quite familiar with the airports from which and to which I am traveling, and I know what I can eat there. If there is any doubt, I make sure I have something in my bag. A must-have for me is pre-measured protein powder in small Ziploc bags along with a shaker cup.