This is hands down one of the craziest shopping hacks on the internet 🤯💸 Save this video because Amazon does NOT want you to know this. Here’s exactly how to unlock insane discounts step by step 👇 1️⃣ Google Koupon or download their mobile App (no login required and it’s 100% free) 🌐 2️⃣ Click on the 40% promo codes section at the top. 3️⃣ Browse thousands of products from Amazon, Best Buy, and Walmart 4️⃣ Find an item you like, copy the promo code, and paste it directly at Amazon checkout.