It's a sensible suggestion, but honestly our eating out is usually planned rather than just laziness. Except for the pizza saturday, but that was mainly due to me burning ~4000kcal earlier in the day. So weirdly even after the McDonalds/Pizza i was under calories for the weekend give how long we spread the pizza out over. I'm more about trying to find the right balance so happy to have a Mcdonalds or something once a week as long as it's not compounding a weeks worth of stuff.
We have a 4 weekly meal plan for evening meals, and pretty much only buy the ingredients we need for those specific meals when we go shopping each week to avoid waste etc. The main place i really need to sort out is probably lunches, they're not high in calories, but generally consist of chorizo/salami sandwiches which isn't exactly a healthy option. Sometimes i go with scrambled eggs but not every day.
Where i really need to improve is beer/wine. Again not due to calories particularly but more the knock on impact it has elsewhere in diet. Nipping to the supermarket/shops in my lunch hour and grabbing a freezing cold beer out of the fridge on the way out is absolutely delicious and one of my favourite things to do here. Just so refreshing, but it's not something i should be doing multiple times a week!