Always putting dents in your garage walls because you park too far forward? Sure, you can use a tennis ball on a string, but that solution has a distinct lack of lasers. This Dual Laser Park works on an AC adapter and 3AA batteries, which shines down onto your hood when you're deep enough inside your garage.
Both useful and not too expensive ($39.95). Hit the jump to see a family with a $50,000 car that wishes they had this system.