Proper Tire Inflation and Rotation
Tires leak naturally and need the occasional check. Figuratively speaking, underinflated tires suck up gasoline. Under- or overinflated tires wear out sooner, and deliver the same emergency maneuver handling as marshmallows. You probably aren't going to check tire pressures monthly, but how about twice a year?
Furthermore, front and rear tires wear differently and should be rotated to even that wear. Your owner's manual will have a recommendation on both pressure and rotation periods.