You know that moment in the cookie aisle when your kid grabs the blue Oreo package and you glance at the price tag. Then you spot the store-brand version a shelf over for a couple of dollars less and wonder if anybody would actually notice the difference. Grocery dupes are built on that trade-off, and more families are leaning on them to keep weekly carts affordable without yanking favorite snacks out of the lineup. Store-brand lookalikes are having a moment, and Aldi is at the center of a lot of the chatter online. What Are Grocery Dupes and How Do They Work? Grocery dupes...