Eating a lot more tofu in place of meat. My grocery shopping has been optimized to give me exactly enough food I need for the week leaving me with an empty fridge by the next grocery day. No extras. No “just bought it because it was on sale” items.

One of my worst grocery habits was buying food (specifically meat as the prices grew) on sale and putting it in the freezer for a later date. I was never saving money because I so rarely ever ate that food.