Fair warning: I have no experience using this universal smartphone car mount from Beam Electronics, but it's hard not to give it a try for just $3. Shipping usually costs an additional $4, but you can waive that fee by using the coupon code BEAMFREE at checkout.

This car mount should clip onto any air vent, so you don't have to mess around with suction cups, but you'll want to hold off on this deal if your car's vents are in a hard-to-reach location.