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http://blog.nwautos.com/2009/11/turn_your_cell_phone_into_a_spare_car_key_and_win_the_frost_battle_with_de-icer.html

November 27, 2009 12:00 AM

Turn your cell phone into a spare car key and win the frost battle with de-icer

Viper SmartStart

Phone as key
Want to remotely lock, unlock and start your car with your cell phone? There's now an app for that. The Viper SmartStart iPhone application works on any car with electric windows and locks, but does not require an existing remote start feature. It does require a receiver that is installed in the car.
$499 for the receiver, Best Buy

Prestone De-Icer

Ice be gone
If you regularly battle morning frost, try a little bit of Prestone's De-Icer Windshield Washer Fluid. The concentrated solution, when added to regular windshield washer fluid, lowers the freezing point of the liquid by 20 degrees, helping to melt the ice and frost.
About $5, major retailers