You might come across an online shop that is “closing down” and has a final blowout sale, advertising on all the social networking sites. The “Only today” call to action works in general in real stores, but if you hurry to buy online because it’s 70% off today, and only today, not only might you not get anything, but you will lose your money as well.

How to avoid: double check the name of the seller and the kind of the page the offer opens. Any safe for purchases website will have “https” in the browser, not just “http”.