A case of laziness

I am having such a hard time lately with my summer plans, because I guess I have yet to latch on to the fact that I am supposed to be a responsible adult now. I have a part-time job, and once classes are over I am going to hold onto that for dear life, because it is the best job I've ever had, and works perfectly around my classes. However, I've been thinking a lot about getting a second job to save up money for my expenses next year and I almost can't bring myself to do it. I must stlil be stuck in the phase where I figure everything will just drop into my lap. I realize that I should have a second job, and I know if I don't do something I will go completely insane! But what is the correct answer for an activity, because I still feel like there is something better I could do with my time than creating myself a secret stash of money. Volunteering? Internship? Yard work? In previous summers I had a job cooking at a Boy Scout camp, and that pretty much didn't leave me with much time to spare. I mean, I barely had time to eat, sleep, or breathe! Now that I have all these options of summer activities I seem to have boggled my brain!