Did 9 days, 2,400 miles, one soft cooler, two hotel mini-fridges. My optimization problem: keep protein within reach, avoid gas-station snack aisle, don't spend vacation in a restroom.
What worked: pre-portioned Greek yogurt in small jars, turkey sticks, roasted edamame, tuna pouches, string cheese, hard-boiled eggs from grocery stores, and those shelf-stable lentil cups. What did not: protein bars that taste like drywall and anything that needed a microwave.
NSV: at a diner I ordered the burger without the bun and ate half the fries, not the whole basket. Usually vacation is a 6-day grazing event. This time I logged maybe 70% adherence and didn't spiral. Question: what's your no-drama travel protein that doesn't require refrigeration or a cutting board?