Most grocery lists get written the way we think about food: by category. Produce, then dairy, then whatever’s left. It’s tidy on paper, but it rarely matches how a kitchen actually runs out of things.
Try building your list by where the gap actually is instead. Walk the fridge door, the pantry shelf, the freezer drawer — write down what’s missing as you find it, not what you assume you need. You’ll catch the half-used jar of tahini before you buy a second one, and you won’t get home to discover you already had three cans of chickpeas.
It takes an extra five minutes before you leave the house. It saves a lot more than that in food you forgot you had.