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.
If you love baking and are able to keep your hand out of the proverbial cookie jar, making gourmet cookies is a great side hustle with plenty of long-term potential. Start by learning how to execute unique and tasty gourmet cookie recipes, then seal the deal by creating or purchasing professional-looking packaging. Sell your cookies online or to people in your local community.
Another option for earning a side income is to deliver for PostMates. Similar to working for Uber and Lyft, you can work whenever you want. While the pay might not be enormous, you do have the ability to earn tips. If you're in a highly-trafficked area such as Los Angeles or New York City, this is a great way to earn some cash and you don't even need a car.
As I already mentioned, I started a blog while working full time, babysitting, and freelance writing. Eventually, I wanted to build a scalable business, so I quit babysitting and freelance writing, but I initially used money from those jobs to help grow my blog. I needed that income for the side jobs (babysitting and freelance writing) to help me grow my side hustle (my blog). So, you can find ways to grow your side hustle by adding in a side job to the mix while you need it. I highly recommend it!
OK, so I am guessing Grant was a lot like me in that very early on his goal was financial independence. I pursued a different strategy but was also very motivated. I worked for a Fortune 100 company, earned my undergraduate and MBA at night and on the weekends. I maxed out my 401K and collected all the free money that I could. I had some great jobs and traveled the world. I retired at 56 and have been enjoying life and my freedom ever since. It will always require dedication and hard work but if you want it you can earn it. But not everyone is driven and if you are not you will never achieve your goals. I am writing this while I am in Sao Paulo, Brazil one of the great foodie cities in the world, and I bet you didn’t know that either. But I know because I travel a lot!
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).