Be proactive. Remember Murphy's Law: "Whatever can go wrong will go wrong." Make plans, complete with as many calculations as possible, then anticipate everything that can go wrong. Then make contingency or backup plans for each scenario. Don't leave anything to luck. If you're writing a business plan, for example, do your best to estimate when you'll break even, then multiply that time frame by three to get a more realistic date; and after you've identified all the costs, add 20% to that for costs that will come up that you didn't anticipate. Your best defense against Murphy's law is to assume the worst, and brace yourself. An appropriate amount of insurance may be something worth considering. Don't forget the advice of Louis Pasteur, a French chemist who made several incredible breakthroughs in the causes and prevention of disease: "Luck favors the prepared mind."
If you have a blog or some other online property with some traffic, you can monetize it via affiliate advertising. For example, imagine that you write a blog about cars and you have thousands of visitors each month. You might review some books or products related to cars, and then link to them on Amazon so that you get a cut of the purchase price when anyone buys books through the links.
Ask your parents if they'll pay you for doing more chores. You're probably already expected to do chores around the house and help out your family for free. If you need a little extra pocket change, however, ask your parents if there's something else you can do for a small fee. For instance, maybe your mom really hates folding laundry and would be willing to pay $5 a week for you to do it instead. Whatever it is, let your parents know you're willing to take on more work for a bit of allowance.
What does that mean for you? It means Nielsen will pay you $50 a year to keep their app on your favorite internet browsing device. The app itself collects statistics on your internet usage anonymously, so you never have to worry about any data being linked to you. And the best part is, the app takes up barely any space and doesn’t slow down your phone or tablet at all!