Two weeks of lunches for me.
I rarely go out to eat. My 140 cup tub of Folgers for $10 keeps me out of Starbucks.
Years ago my kids had a math problem where they would go out for dinner, then calculate the sales tax and then the tip and add it all up. After helping them I would exclaim “And THIS is why I hate going out to eat! But multiply it by five for the whole family!!”