Use after washing the car with my Homemade Car Wash. After the car is completely dry, use this:
Pour some apple cider vinegar into a small bowl.
Use a sponge dipped into the vinegar and squeezed out and apply directly to the car and windows.
Dry off with dry rag.
Enjoy your shiny car.
Additional notes: Works best if its not extremely hot out or if the sun isn't directy over it.
Wear gloves if you mind vinegary hands.
White vinegar might work too, I don't have any on hand.
Use it to shine your dash too.