Ways to invest

Stock Options.
While this is one of the quickest ways to make a lot of money, it is also one of the riskiest. Stock options are cheaper than actually owning the stock, but the contracts you buy will eventually expire. If you have not sold or exercised them yet, then your money will expire with it.

Stocks.
The return may not be as fast a stock option but it is a lot safer. If you are investing a hefty sum of money I would suggest talking to a stock broker. They do charge fees but they also have quite a bit of knowledge on the market.

Savings account.
While putting money in a savings account does not sound like a huge investment, it can be. Depending on the amount of money you are putting in will determine how much you will be making in interest. If you are just putting in 10 dollars there will not be much, but if you are starting out with a 100,000 dollar deposit there will be.

401k.
One of the biggest things you can do with a 401k is start young. The younger you start the longer your money will stay in the 401k and draw interest. Time in the majority of investments are very critical and can make a big difference on the amount of money you are making.