I grew up about a mile from a golf course, and when I was in my pre-teen, early teen years, I would walk up and down the road and find golfballs that the golfers hit out next to the road and never found or didn't bother getting. I would collect around 100 golf balls a week, and sell them back to the golfers for 50 cents each or $5 a dozen. I thought I was gonna be rich making about $50 a week back then.....

But seriously, doing the grass cutting thing is your best option. But then again, if I were you, I'd enjoy not having to work as long as you can. Once you hit the job scene, your in it the rest of your life.....enjoy the next 2 years before getting a job, just my opinion....