I think someone mentioned trying to use a hobby or something you are skilled at. I teach drum lessons during the school year, I only work one day a week for around 3 hours and make around 500-800 a quarter( 9 weeks). You just gotta kind of look around for what is out there. For a while I went to this local auction and bought golf bags, I got them cheap there and then sold them on craigslist and made a pretty good profit. You need to be a self starter and be innovative, it's kind of like starting your own little business. I know there was a kid in our neighborhood who would put out your garbage cans, and take them back inside for people, if you think charging just $2 per house per week, there is at least 50 houses in my neighborhood, and I think most people would go for that. So that's 100 dollars a week for doing just a few hours of work 1 day a week.