Be Consistent and Professional. Even if you’re just trying to earn a few extra bucks per week, approach your freelance writing gigs with the same consistency and professionalism you’d apply to a career-track position. Clients respect diligent, reliable writers who do what they say they’ll do, when they say they’ll do it, and regularly produce work that exceeds expectations. If you keep up your end of the bargain, clients should reward you with more work. As you get busier, you can safely leave the ones that don’t appreciate your efforts in the dust.
If you want to make a lot of money investing, look it as a long-term strategy and don’t freak out over short-term market fluctuations. Just use dollar-cost averaging and buy a broad range of stocks that will help shelter you from any downturns (such as the index funds we discussed.) Then you won’t need to waste your own precious time, money, and energy trying to outsmart the market.
Ebay is a bellwether. It's been around since nearly the start of the online boom. But, like any other platform, success can seem fleeting if you don't know what you're doing. Selling items on eBay, professionally that is, can be an art form. Getting people interested in your auctions isn't always easy, especially when there's hefty competition and low demand for what you're selling.

Etsy: While Etsy's popularity has declined recently, it's still a great resource for selling handmade items online. No need for complex ecommerce sites or merchant accounts or any sort of automation. The company takes a commission of every sale and charges a small listing fee per item. But many still use Etsy as their primary source of income. The best part is that you can also sell digital products such as poster designs. 

One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.
As with online teaching, to maximize your chances of success as an online tutor, stick to subjects you know well. Use a reputable and high-visibility venue, structure your sessions sensibly, price your services in line with the market, follow scheduling best practices, and promote yourself enthusiastically (or choose a platform that does so on your behalf).

Have an extra room in the house? Try renting it out on Airbnb.com. According to Smart Asset, you can pay up to 81% of your rent by listing one room in a two-bedroom home. If you're really looking to ring in the cash, renting out a private home or apartment is the way to go. According to Smart Asset's findings, rates for full apartments are significantly higher than those for just rooms, with annual profits ranging from $15,000 to $31,000 for a two-bedroom apartment.

– Project Payday is one of those sites that has testimonials of people who have earned thousands of dollars by getting paid to get trial offers. I’m not saying you’ll earn thousands, but it is legit and you can earn some extra cash. They assume that by paying you to do a free trial, you’ll either like the product and purchase it, or forget to cancel the trial and get charged for it. If you can keep track and cancel before you get charged (if you don’t want the product), then this is a great site for making some money.
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