Yes, even the PowerPoint presentation requires outside consulting every now and then—especially if it's not your forte. I know I would happily outsource the visual layout of my presentation decks for work meetings, investor pitches and lectures. Tobias Schelle of 24Slides is living proof that you can turn your skills at slideshow presentation design into a legit side business idea—and potentially earn up to $20 a slide for your time and talents.
There’s no need to be an artist, just an expert in some form of art. Visit galleries. Get on their email lists, and go to their parties. Get to know their clients. Gallery owners will love you, even recommend your services, because you’ll be telling people to buy art from them. You don’t have to own any inventory. It’s pure consulting. There is almost no overhead cost for a business like this. It’s really about having a passion for art and a knack for earning people’s trust. And it’s fun!
Nothing beats teaching more novice learners about your passion, hobby, or craft as a business idea (that's a common theme here). Explore dozens of DIY portals (such as DIY.org, DIY Network, Instructables and Mahalo) to get business ideas on how to earn a healthy side income just by showing others how to do the things you love. You can also sift through the countless ad-supported YouTube channels that teach just about anything from guitar strumming to 3D printing.
Offer a soup-to-nuts business plan, including market research, the business plan narrative and the financial statements. Plan your fee around the main one that the client will want and offer the others as add-on services. You can give clients an electronic file and allow them to take it from there, or you can keep the business plan on file and offer the service of tweaking it whenever necessary. Have business plan samples to show clients--and make sure to include your own!
Driving for one of the two globally expanding app-centric taxi alternative services, Uber or Lyft can still be a fairly lucrative way to earn money as a side business idea on nights and weekends—working only when you want. But before you dive head first into this side business idea, do your homework and calculate the costs of extra gas, mileage, tires, wear & tear and usage on your vehicle—it's not a guaranteed business idea that'll turn a huge profit every weekend.