We live a long way from the nearest city, so whenever I drove there it would end up being a fairly long day. The kids would always get hungry and want lunch and snacks out. I learned that quite a bit of money could be saved by packing my own drinks and food in a cooler. If we do go out and don't have time to pack a lunch first, I still grab a few cans of soda and and chips, then order at the drive through only a hamburger for each of us and cups of ice. Most places don't charge for ice. That way we can all eat for less than a dollar each.
Another tip if you like fresh coffee on long drives: I always pack a cup for the way there, but on the way back I have found that if you refill your own cups most places will give you a great discount, even if it isn't one of their store cups. - Submitted by Kendra