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1. Delicious smells will make you hungrier.


You know you knead it.

That's why grocery stores often route you past baked goods and rotisserie chickens near the entrances.

A terrible idea for resisting: bring your own tiny vial of medieval smelling salts every time you shop.

2. Grocery stores also shepherd you past flowers and fresh fruits and vegetables near the entrance to make you feel better about the Double Stuffed Oreos you'll be buying later.

Bright colors make you happier, and you're more likely to buy wholesome food right as you begin to shop, before your willpower is broken. And then, once your cart is loaded with kale that's going to wilt in your fridge, you'll reward yourself with those chocolate covered almonds that are practically a health food.