Not sure if you speak spanish, german or french but taking the language exam is a quick way of picking up some humanities credits (can get from 3-12). that or you can take the "ethics in america" dsst exam as well.
I agree - VERY easy. The 6 credit general is not that easy to pass without some knowledge/study. The 6 credit Analy. and Interp. Lit could work also if the subject interests you.