The Polish competition authority has issued guidance for consumers ahead of Black Friday, urging them to verify the lowest price of products from the past 30 days before taking advantage of discounts. This historical price is crucial as it reflects the true value of the discount being offered.

Consumers are encouraged to carefully consider whether they truly need the items they are purchasing, as spending money does not equate to saving. The authority highlights that an attractive discount does not always mean a good price.

Additionally, the authority points out various tricks used by sellers to entice consumers and explains why these tactics can be effective. To further educate the public, they recommend listening to the podcast titled 'Sales - Secrets, Tricks, Hooks' which delves into these marketing strategies.