Easiest Way to Raise Your GPA
Do some extra credit!
Extra Credit Facts
Just because they don't announce that they offer extra credit on the first day doesn't mean they don't offer it all.
Teachers are more willingly to give out extra credit because most students are dying to do less, thus making a good impression.
Even if you already have a good grade, by raising it you create more time to worry about the harder classes.
It will make a difference in the end, could be those few points you needed.