There have been times as an exhausted single mom working full time, errands, laundry mat, church, and everything the kids were involved in, I would hit up the drive throughs multiple times a week.
AFter a while I realized that it was much less expensive to have easy to prepare meals from home, even if it meant carrying it with us. It was also less stressful because there was less driving in and out of food places, waiting in line, getting the kids to order, dealing with mistakes in our orders, etc. I found sandwiches, hot pockets, cereal bars, cheese and crackers, and fruit were easy meals to have on the go. I also try to keep chips in the car a lot of times.
I also developed the habit of having a snack with me for the drive home or immediately when I walked into the door of my home. It helped to control my hunger and urges to grab burgers.
Most of the time now, I limit us to eating out one time a week, and sometimes not even that much depending on what my budget looks like. Like right now, I've not worked hardly at all this summer, but now I am and i have a little money. It is taking everything with in me not to rush to Little Caesars or a burger joint.