2-Pack Mpow Magnetic Smartphone Vent Mounts | $7 | Amazon | Promo code SHKFLCKX
Photo: Amazon

Magnetic vent mounts are the most unobtrusive way to mount your phone in the car, and you can get two of them for $7 today with promo code SHKFLCKX. I like to keep one of these in my luggage for rental cars, and they also work as impromptu phone stands if you want to prop up your device to watch a video.