This is an article about supermarket playing with prices to get consumers buy more of discounted or promoted products. They might actually just “engineer” some things to make us confused and regard the price as advantageous. It suggests that we should look at the price carefully, count the value of the product, and compare with the original price. There are examples and explanations of how supermarkets are doing this and how easily we get persuaded. There are patterns. Be aware of promotion that includes bulk products and product that sold with a “bonus” package. It is really important to count the price of everything you’ll accept. Also watch for expired dates and don’t be tempted. Read the article for details of what you might never realized. There are also some useful tips. Read here.