DBPOWER 12V Tire Inflator | $20 | Amazon | Use code YJX3MVFN

Forget trying to find quarters under your car seat and paying way too much for 3 minutes of air, and get this $20 tire inflator with code YJX3MVFN. You can fill up your tires whenever and wherever you please for free. Keeping your tires properly inflated helps improve gas mileage so this little gadget will basically pay for itself. It also works on bike tires.