I have the ebag food sack. I go to Target (new target) and in the food section I pack wraps, sandwiches, and some fruit which comes out to be like $15. While one my trip (3-4 days) I use a headache pack which I got at Walmart for like $4 and I keep loading it up with ice from the vending machines at the hotels or from the airplane. If I have a refridge at the overnight..bonus. That food sack stays pretty cool as long as you keep swapin out the ice. I budget about $15 for food/beer to go out once per trip with the crew if I want. Soda/water/snacks all on the plane. So $30 per 4 day trip isn't too shabby. My two cents.