Become A Professional Picker
Do you have an eye for picking
Have you ever watched the show pickers on the history channel and said "I can do that" well you can. A great place to start is at yard sales and flea markets, you can even use craigs list. The best way to make money is to buy and sell things that you know for example if you a parent then you know how much toys, and cribs, and clothes cost. If you play a lot of video games then you would know how much certain systems and games cost.
It is also a good idea to do some research on ebay and craigslist to see what other people are asking. Then the treasure hunt begins.
Take a chance
Sometimes you will come across thing that you are unsure of but its always a good idea to go with your hunch. if the price is right buy it because you may never see it again.