I tried prostitution for a few days but had no customers so I gave up.
I've made some side income with computer repair. You can undercut every repair shop and still make a large profit. Most problems take less than an hour to diagnose and a few hours to fix but you can still make $100+ on a job. Biggest hurdle is getting customers. A few fliers in local convenience stores helps and even better if you have a good central, easy to find location for people to drop off computers. Initial investment is relatively small, You'll want to have some spare parts laying around and some money on hand to buy parts that you're installing/reselling. It's easy work, most of the time you can play a game or watch TV while something is installing/scanning.
