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4. Music does matter. As a rule, supermarket music is slow but engaging. It makes us move slower, choosing products. Try wearing your headphones with fast workout music, and you'll notice it will make you run faster through the stalls and buy less in the end.
5. Promotions aren't always fair. "10 for $10" promotion isn't always as great as it seems. Try doing some math before you put this kind of offer into your cart, as there can be a trick.
6. Thaw yourself. Instead of buying seafood at a counter, try going to a "Previously frozen" section. You'll see the products there are the same, but at the counter, they can be up to 40% more expensive.
7. Don't fill your shopping cart to the full. Just take a basket instead, as this huge cart and lots of space in there makes people subconsciously want to pack it to the fullest.