If you have strong writing or editing skills, you can start freelancing right away. There are many websites that connect freelancers with clients, such as Upwork, Fiverr, and Freelancer.com.
Affiliate marketing is a way to earn commissions by promoting other people's products or services. You can promote products or services through your blog, social media, or email marketing.
You can start an e-commerce business without any inventory by dropshipping. Dropshipping is a fulfillment model where you sell products that are stored and shipped by a third-party supplier.
If you're organized and reliable, you can start a house cleaning or pet sitting business. You can market your services to friends, family, and neighbors.
If you have skills in photography or graphic design, you can start freelancing immediately. There are many websites that connect freelancers with clients, such as Upwork, Fiverr, and Guru.
If you're an expert in a particular subject, you can start tutoring students online. There are many websites that connect tutors with students, such as Chegg, TutorMe, and Wyzant.
Virtual assistants provide administrative, technical, or creative assistance to clients from a remote location. You can offer a variety of services, such as email management, social media marketing, website design, or bookkeeping.
There are many websites that pay you to take online surveys. This is a great way to earn some extra money in your spare time.
If you have a passion for writing, you can start a blog. You can write about anything you're interested in, and you can monetize your blog through advertising, affiliate marketing, or selling products or services.