Apps that assist you with parking seem to be a perfect application for the iPhone. You'll never again need to be concerned about remembering where you parked your car. Parkbud ($1.99) lets you easily set a timer and an alert so that you don't get fined for overtime parking. It also lets you set your location and guides you back to your car. It includes a feature that lets you find nearby parking garages. Other features include a notepad in case you want to make a note regarding parking restrictions, etc., and a camera function for taking a photo of your location.