The internet is full of articles about side hustles that can "replace your income." These articles are themselves a side hustle for the people writing them. It's side hustles all the way down.
A side hustle is a job you do in addition to your job, because one job no longer pays enough to live. The fact that this needs a catchy name instead of being called "a depressing economic reality" tells you everything about how hustle culture works: rebrand the problem as an opportunity. Can't afford rent? That's not a systemic issue — that's a chance to hustle!
Dropshipping: You sell products you never touch from factories you never visit to customers who could have bought them directly for less money. Your profit margin is somewhere between "not worth it" and "technically positive." The only people making real money from dropshipping are the people selling courses on dropshipping.
Print on Demand: You upload a design to a website, someone prints it on a t-shirt, and you make $2.50 per sale. You will sell seven shirts, three of them to family members. The designs that sell well are either offensive or involve cats with sunglasses. Sometimes both.
Freelance Writing: You write 1,500-word articles about topics you know nothing about for $25 each. After research, writing, editing, and invoicing, your hourly rate works out to roughly what you'd earn returning cans. But you're "your own boss," which means you're the boss of a company that pays below minimum wage.
Selling Crafts Online: You spend $200 on supplies, forty hours on labor, and list your handmade product for $35 because that's what the market will bear. Someone will ask for a discount. Someone will leave a one-star review because shipping took five days. You will question the concept of human decency.
The most profitable side hustle is spending less money. It doesn't sound exciting because it isn't, but every dollar you don't spend is a dollar you don't have to earn at your second job at 11 PM. Not buying things is free, requires no startup capital, and has a 100% profit margin. But nobody writes a Medium article about it because "stop buying stuff" gets fewer clicks than "how I made $10,000/month selling digital planners."