New Delhi, Nov. 12 -- Holiday air travel is up, lines are long, and airport garages are dim. That's exactly when small oversights turn into big bills: mystery scratches, surprise toll charges, low-tire warnings, and the great "fuel policy misunderstanding." Before you merge onto I-95 in Florida, I-5 in California, I-10 in Texas, or the LIE in New York, give yourself ten minutes for this rental-car reality check. The goal isn't paranoia. It's proof, prevention, and peace of mind.

1) Take the 90-Second Walkaround (Before You Leave the Garage)

Yes, photos. Do one slow lap around the car and shoot the front, back, both sides, wheels, roof, windshield, and any scuffs or chips. Open the doors and get the interior, the odometer, and the fuel g...