USB Car Charger 2-Pack, Only $4.24 on Amazon

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Amazon has a 2-pack of USB car chargers for just $4.24 when you clip the 50% coupon on the product page. Designed to plug into a car's cigarette lighter or power outlet, each charger features one USB-A port and one USB-C port and can charge two devices at the same time. There's a 2-for-1 promo, but the 50% off coupon gives you equal savings.