Oh, sure it's a good idea to get a summer job while you have a lot of free time, why not? I think you'll find a really interesting summer job and will enjoy it, at the past year I've worked in restaurants as a waiter, i'm about to say that it's not easy, but usually i met a very kind clients, as rule they left tips, together with the salary after work i could go to the mall and buy everything i wanted, also sometimes i gave some money to my mom so she can buy something herself, this made me really happy. In Russia there a lot of summer jobs that you can try, for instance you can taking dogs out for a walk for money, as me you can get a job as a waiter, handing out flyers or being an animator. In next year I'd like to try get a summer job as an animator, their job looks really interesting!