Memorial Day is a time for sales. Advertisers want your business. They often use repeated discounts to make you think you are getting stuff for free. Be aware!
Double Discounts - Wow, check out this sale! I'm gonna be able to get this great hoodie so cheap! If I use the promo code what will be the total percent off?
Wow, everything must be free! - What happens when you take 50% off again after taking 50% off at first? Could everything be free?