A car wash might clean bird poop off your car, but it's not always a sure thing, especially if it's been baking in the sun.

Ever feel like birds are specifically targeting your car for bombing raids? That might not be as ridiculous as it sounds.

The question is: how often should you do it? AAA says every two weeks because vehicles are constantly exposed to different environmental factors like bird poop, tree sap and insects. That can do a ...