While we’re talking supermarket wisdom, it’s important to shop with your brain, not your belly. If you plan your meals in advance, you can head off to grocery shop with a list in hand that highlights the necessities. You’ll be less inclined to peruse aisles with foods you won’t eat and don’t need on your waistline. What’s more, shopping when hungry or depressed might lead you into high-calorie territory that not only looks bad on the hips but also the wallet. Ever really pay attention to what a pint of ice cream costs?