This goal is not one easily attained.
Those who are not highly motivated and strong willed are likely to struggle greatly trying to achieve this feat.
So to optimize your efforts and increase your chances of success you will need to pick a money making idea that is extremely lucrative and is within your skill set.
If it is not within your abilities, pick something that you can learn easily and enjoy.
The hardest thing to deal with in business is struggling while doing something you don't even enjoy.
Here are a few ideas that can set you on your way to your desired income.
Remember, the idea must be completed perfectly for you to succeed.
The plans don't fail, people fail to execute them properly.

• Real Estate Investments - Flipping houses or becoming a landlord can make you plenty of money.
  $100k can be easily achieved in a years time.
  However you will have to shell out some serious cash or have some very willing investors lined up.
  There are real estate systems out there that are supposed to teach you how to pick up properties for very little money and make serious returns.
  However I have never found one that actually delivers on what it says, so I can't make any recommendations.
  
• Start A Business - Small businesses are started every single day.
  Though not all will make you $100k per year.
  As a matter of fact, most won't make anywhere near that, if anything at all.
  Many small businesses fail due to poor ideas, lack of the proper tools, and economic issues that you can't control.
  Don't get disheartened though, just make sure you do your research and start a business that is in demand.
  Unless you know that you can do something better than everyone else, don't start a business that has massive amounts of competition.
  
• Turn to the Internet - This is probably the most popular option.
  The internet offers a vast array of opportunities that can make you rich if you do things right.
  Everything from eBay stores to marketing can make you $100,000 per year.
  Just like any business though, not just anything can make you that much.
  You must pick a product or service that is unique and in demand to achieve the best possible results.
  
• Going from a mediocre job to a $100k annual salary is hard to do, but if you are diligent and have the drive to succeed you could be taking control of your financial future in no time.