Have you locked your keys in thecar? Does your car have remote keyless entry? This may come in handysomeday. Good reason to own a cell phone: If you lock your keys in thecar and the spare keys are at home, call someone at home on theirmobile phone from your cell phone.Hold your cell phone about a foot from your car door and have theperson at your home press the unlock button, holding it near the mobilephone on their end. Your car will unlock. Saves someone from having todrive your keys to you. Distance is no object. You could be hundreds ofmiles away, and if you can reach someone who has the other 'remote' foryour car, you can unlock the doors (or the trunk).Editor's Note: It works fine! We tried it out and it unlocked our carover a mobile phone!'