General car care question: Just how religious do you have to be concerning minor bug splatters on either the headlight covers or on the windshield between washes (yes I know paint is a different matter)?
By minor, I mean that usually rain is enough to remove most of the gunk in my experience.
I understand it'd be advisable if you're in Tx or Fla, 'cause you get some big nasty bugs there. But in European driving conditions, is it really necessary to clean these off headlights and windshield between washes - or is it OK to just leave them & worry about the important stuff in life instead?