Surveys say that by 2020, over 40% of us will be freelancers, independents and contractors. If you don't know how to be self-employed and you don't know how to sell, then... uh oh for you. We can't depend on BIG anymore. Maybe we never could. Big business. Big government. Big education. No. You're on your own. And that's a good thing IF you can learn to eat what you kill. Here are some ground rules.