7. Rubbing alcohol!
(Image Source: popsugar.com)
The most stubbornly dirty part of the car is often where the driver sits. There may not always be passengers, but there’s always a driver! Use rubbing alcohol to dissolve grime on door handles. You can also use it on other parts of the vinyl interior that are touched frequently or have been marked up with pens. It’s amazing to see what color your interior actually is underneath all of that muck!