Don't put all your trust in Social Security. While it's a good bet that Social Security will continue to work for the next 20 or so years, some data suggest that if Congress doesn't radically alter the system — either by raising taxes or reducing benefits — Social Security won't be available in its current form. It is probable, however, that Congress will act to "fix" Social Security. In any event, Social Security was never designed to be the only resource for retirees in their later years. That makes it all the more important that you save and invest for the future. 
Our wage and job-growth information come from the latest edition of the Bureau of Labor Statistics’ Occupational Outlook Handbook. The BLS lists “median” wages for jobs rather than “average” wages. The median wage is in the middle of the data set, with half of the jobs paying less and half paying more. BLS job-growth projections are for 2016 to 2026.
26. Services – You can offer a paid service, such as life coaching, blog coaching, goal setting or financial planning. Just be sure to investigate all the legal implications and make sure you’re not claiming to be a professional if you’re not one. With a service like this, you’re basically using your blog to sell yourself. You’ll need to convince people that you’re worth buying and then be able to back up your claims once they purchase your service.
Go undercover to local stores, look around, take notes and sneaky pictures of stuff doing nothing, fill in the questionnaire afterwards and get your cash. You can get mystery shopping assignments via Mobee app (typically the payments are not that big, yet the tasks you need to do are simple too) or get an account with Marketforce – a more established website where you’ll need to carefully fill in an application form and pass a review process. The potential earning are much bigger.
Buy and sell domain names. If you’re good at finding popular yet undiscovered domain names, you can make some cash on the side by buying and reselling websites. Think of it as digital real estate speculation. Domains are available on GoDaddy.com for as little as $2.99 per year, but are sometimes resold at far higher prices: According to Business Insider, the site MM.com sold for $1.2 million dollars in 2014. Once you find the perfect domain name to resell, you can market it on Flippa.com for a flat fee.
Open an Etsy store. If you have a creative talent or skill – whether it’s creating art, sewing clothes, or making keepsakes – you can open an online store on Etsy.com and sell your wares for some quick cash. With your own Etsy store, you’re left in charge of pricing and, ultimately, how much you make. See our detailed primer, “How to Make Money on Etsy.”