Park in the shade
Of course, a garage is always the ideal place to park your car. But 
if one isn’t available, minimize interior damage from UV sunlight and 
heat by always trying to park your car in the shade. If no shade is 
available or if you find parking under a tree results in bird droppings,
 use a car shade to minimize the sun’s impact. As a bonus, you’ll have a
 cooler car to step into on hot sunny days. Car shades come in two basic
 types: those that you unfold and place on the front windshield and rear
 window, or pleated types that attach to the windshield posts (with 
adhesive), window frames (with Velcro), or the windows themselves (with 
suction cups).