If you love to travel and find yourself randomly searching for airfare sales or browsing Lonely Planet, why not carve out a niche for yourself as a private travel agent? Take my friend, Mark Jackson's lead with what he's doing to build a travel consulting side business idea. Start with word of mouth recommendations from friends who know they can count on you for the cheapest flights, create a Facebook or LinkedIn group to invite people who want to stay on top of the latest deals and eventually you could spin this business idea into a full-time consultancy teaching people how to make your dream trip a reality.

Can you draw, paint, or create another form of art that others would be willing to purchase? Create a Facebook or Etsy store to create works of art commissioned in your preferred medium. I know someone who draws Valentine’s cards, Christmas cards, and even birthday invitations for extra money for her family. With that money, she helped fund an international adoption. Another friend draws beautiful portraits of babies and children from pictures that are sent to her.
If editing and advising college students on how to write compelling 500 word essays on topics such as "You were just invited to speak at the White House. Write your speech," seems like a compelling business idea to allocate your free time towards, trust me—tons of parents will pay you to edit admissions essays and offer constructive feedback for their children. Be careful not to blur the ethical line of actually writing their essays, but serving as an editor to help them convey their message can become a great side business idea that has the potential to spread by word-of-mouth referral in your community.

It is amazing how this book has covered everything....everything you might need to know about generating income, searching for what may fit you, managing the funds, protecting your income, avoiding legalities, incorporating legalities, marketing, finances, and types of side businesses. You simply cannot go wrong, as there is just too much information.
Successfully starting a blogging business requires a lot of passion for a particular subject and a desire to share that passion with others. The passion is often more important than what the subject itself is, as there are blogs on all kinds of topics -- and readers interested in all kinds of subjects. Creating content for a blogging business requires a significant amount of time, but the tasks can easily be arranged around a full-time job or other obligations.
Those who have experience in HR and a thorough understanding of Applicant Tracking Systems  (ATS) will do well. You will need a certain amount of people skills to attract clients, but the results will matter far more than how friendly and personable you are. If 90% of your clients find a job in their field after paying you a visit, these numbers will speak for themselves.
As I’ve already covered with TeeSpring, the T-shirt retailing business is worth millions of dollars. But what if you want to do the manufacturing side of things? T-shirt printing turns out to be quite a rewarding business idea for many each year, but can quickly consume much of your side business idea time—so know what you're getting into before diving in. This multi-billion dollar industry counts big corporate factories as well as home-based part-time entrepreneurs.
There are two basic ways how to find the best affiliate partners. You can make a list of products or services that add value to your content and check the company websites to see if they have an affiliate or referral program, or you can join an affiliate network to browse offers from hundreds of advertisers and find the right match there. For example, you can become an “Amazon associate=” and promote any of their products on your site to earn up to 10% in advertising fees or join Hostinger’s Affiliate program to earn cash and special rewards.
As for other tips, all I can say is “a penny saved is a penny earned”. If you are running out of ideas to make money, start saving. Some quick “low hanging fruit” tips to save some quick cash include – switch to MetroPCS or Boost for cellphone (I only pay $20/month), switch auto insurance to Insurance Panda ($25/month), and start using GasBuddy (saves me like $100/month at least. I drive a lot).
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