College courses aren't meant to be easy, but there are always a few fluff classes to be found at every university. There's no shame in taking one or two easy classes if your GPA needs a little boost. Okay, maybe there's a little shame, but there's nothing better than an easy A!
One of the most common classes that college students take for a GPA boost is Music Appreciation. If it sounds easy, it's because it is. You simply learn basic musical terminology and listen to classical music. Books usually aren't required for this type of course, and grading is likely influenced by participation and attendance. You might have to take a test or two, but they should be a breeze.