How can I start my own mini business?
What's the cheapest small business to start?
Accounting and bookkeeping. Use your training and experience as an accountant or bookkeeper to offer your services to individuals or businesses.

Online affiliate sales. ... 
Airbnb host. ... 
Antique refurbishing. ... 
Mobile app development. ... 
Babysitter. ... 
Baker. ... 
Blogger.