Know what you already bought
This one started with a box of raspberries. I found them at the back of the fridge, past saving, and could not remember buying them. A small loss. But the same thing had happened with steaks that cost fifty or sixty dollars, and that is not small.
I was not overspending at the store so much as losing track at home. I would buy food with a plan, the week would go sideways, and the plan would expire in a drawer. Then I would shop again without knowing what I had, and buy some of it twice.
Telling myself to be more careful did nothing. Nobody carries an inventory of their fridge in their head.
So I built a system that does. My grocery purchases from one store now get logged automatically; the other store I still enter by hand. One page shows me what is on hand and what is about to expire. Before I shop or cook, I look at that page instead of guessing.
It is new, and I do not have a savings number to brag about yet. What I have is a different order of operations:
- Cook from what is already here, oldest first.
- Shop for the gaps, not from memory.
- Notice what keeps expiring, and stop buying it.
The low-tech version works too. Keep a list on the fridge door of what is inside and when you bought it. Check it before you write a shopping list. Cross things off as you eat them.
You already paid for the food. A system makes sure you eat it.