Ways to increase your income

Get a higher education.
If you want to earn more, you may have to go back to school. Depending on what you are wanting to do, it may even be required. Though school can be expensive, if you get the proper degree it will really pay off.

Stock market.
If you have never played the stock market before I would not recommend doing it alone. Perhaps find a broker. I would also suggest that you do not use money that you can not afford to lose. The stock market can make you a lot of money but also can cost you a lot of money.

Talk to your boss.
If you have worked at a job for quite awhile and have not received a raise, this could be your time to talk to him. Be very polite and set up a meeting and tell he/she your situation and you might just get a pay increase.

eBay.
Everyone has things laying around the house that they don't really need. I suggest selling through eBay. This way you are not just having local people bid, but people from all over the world. Depending on what you are selling you can make quite a bit of money.