Make sure your AP classes INCLUDE the test! If you don't pass the test, you can't get the credit. The classes offered at the high school may be free, but the tests were 75-90 a pop. If you can do dual enrollment often all fees are waved for high school students. The more vanilla a class the...
Take a summer class at the local jr. college, might I suggest pottery? In your last year of highschool take a few electives and transferr those credits, many states have programs where high school students can take a class for free. That'll knock off some time, and you won't have to pay...