You might think that you only buy what you need, when you need it. But whether you are shopping for food, clothes or gadgets, the retailers are using the power of psychological persuasion to influence your decisions – and help you part with your cash.
If you think back, I’ll bet there’s a good chance that you can remember walking into a grocery store only to find the layout of the shop has been changed. Perhaps the toilet paper was no longer where you expected it to be, or you struggled to find the tomato ketchup.
Why do shops like to

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