I never received a 4.0 in my life. In High school I received a 3.4gpa with Honors. High school grades are not bragging rights. They are an exercise in how well you can follow directions and how few social problems or qualms you have with society. Don't paint it like it's a big thing, and certainly don't feel full of yourself because your GPA. Some of the smartest people you'll find are the least well adjusted, with poor GPA's.
Just a word of caution for you, since you'll most likely be entering college soon.