If you are a confident web developer then designing your own themes is an obvious path to follow if you are looking to make money online. ThemeForest sells a wide assortment of developers themes, including themes for WordPress, Shopify, Weebly, and Tumblr, to name a few. Once you have created your theme, get it accepted onto the ThemeForest marketplace and make money each time it sells.
Incidentally, helping others grow their wealth is also a good way to grow your own financial worth as a side business idea. If you have stock market and finance credentials, then you can earn freelance commissions or consulting fees, advising clients on how to get the best returns for their investments as a lucrative side business idea if you can get results for those clients—otherwise this business idea can be the fast-track to alienating friends and family, so be careful.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. [7]
If you’re thinking about starting your own home-based business, the available options can seem overwhelming. What type of business is the best fit for your background, skills, and interests? If you don’t have a lot of initial capital to invest, which ones can be started at a low cost? And, most important, which home business has the best chance of succeeding, especially with the U.S. economy still on the rebound?
Do you love getting refunds? How cool would it be to get money back on stuff you’ve already bought? Paribus is a service that lets you find out if stores you’ve shopped at online owe you a refund.  It’s free to sign up. Paribus connects to your email account and checks your receipts.  If they find out a retailer has dropped their price they file a price adjustment claim for you.  Try out Paribus.
As well as selling your eBooks, Amazon can also create paperback copies of your book. CreateSpace, an Amazon-owned company, will help you self-publish your book. A relatively straightforward process, you must upload your work to CreateSpace and submit it for review. Your book will then be displayed on Amazon, and printed on demand and shipped by CreateSpace when purchased. And you can collect up to 70% royalties for each book sold.

Companies will pay you to virtually sit on mock juries to give attorneys and other jury consultants feedback on cases they are currently handling. Think of these as focus groups. The cases are real, but your verdict will do little more than give those involved a prediction of how things might go when it's time to go to court. You can earn fees ranging from $5 to $60. Be sure to read all the disclaimers and details. If this sounds interesting go to eJury.com or OnlineVerdict.com to find a case.
Careful with Carvertise. Shady business practices for their drivers. Their wrap wrecked our paint job on our car and they are being extremely difficult working with us to get it fixed. I gave them a 1 Star rating on their Facebook page and they literally sent my husband an email saying if I didn’t change the rating he wouldn’t be reimbursed for the damages to the car. Shady business practices.
If you’re serious about making money selling things online, it’s pretty much impossible to not recommend Shopify. The platform gives you everything you need to get your online store up and running in less than a day including a custom domain, beautiful templates (so you don’t need design skills), secure payment options, and they can even take care of marketing and shipping for you. Whether you’re promoting your own products, designs, or curating other products for people in your niche, Shopify is the best option for powering your online store.
Many courses exist (many of which, logically, are offered online) where you can learn the language of website creation and can learn about the details, like how to set up shopping cart systems, security concerns, etc. You will, of course, need to learn about each company you design for. What is the atmosphere of the company that you need to reflect in the website design--is it wild and contemporary, meaning brilliant colors and fun graphics? Or will more classic colors like black, navy blue and maroon be more appropriate?
21. Facebook – Facebook swap shops are great for selling things locally. It’s like CraigsList, but a little easier. You simply search for swap shops in your area and ask to join the group. Once you’re in, take a picture of the item, write a quick description with the price and post it. It doesn’t get much easier than that. You can generally expect to get about what you would get at a yard sale, maybe a little more.
 Tutoring can be done in-home or online. The in-home tutoring will take networking and teaching experience to build your business. Online tutoring, however, can be done through companies that connect tutors with students while providing the needed infrastructure (i.e. web conferencing services) for a cut of the fees. Most require a college degree and teaching experience but for some those requirements may be negotiable.
With nearly 100,000 different custom extensions both free and paid available in Google Chrome's marketplace, there's a huge opportunity for creating a useful extension for people to use while browsing the web as a low effort business idea. One of my favorite Chrome extensions, Yet Another Mail Merge, which enables you to send bulk customized emails from within Gmail, gives you 50 free credits to send emails and gives you the chance to upgrade to a paid account to unlock more sending—a great upsell for the people who are getting value from the extension. Even free Chrome extensions like SVRF Tabs by SVRF, which replaces your new tab with stunning VR and 360º images, have the potential to bring in new users and eventually drive revenue for the startup's core business. Another fun example from a friend of mine, Kathleen Garvin, is Hide images with NOPE, a Chrome extension that hides images on the web pages you're browsing—to help eliminate distractions and keep you from seeing images (like those of certain politicians) that you may want to hide. This side business idea is particularly great because it also allows you to showcase your development skills—which can be put to work as an adjacent side business idea on a freelance basis alongside the Chrome extensions you launch.

There are limitless opportunities for consulting services and information technology (IT) is one of the services that have the highest demand. If you are skilled in this area, conduct research to find problems to solve using your IT skills. The costs associated with consulting is the cost of business cards and marketing. However, at the start, you can market via your existing network.

Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs. 

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