I'd recommend: - the lean startup: https://www.amazon.com/Lean-Startup-Entrepreneurs-Continuous-Innovation/dp/0307887898 https://www.amazon.com/Lean-Startup-En

I'd recommend: - the lean startup: https://www.amazon.com/Lean-Startup-Entrepreneurs-Continuous-Innovation/dp/0307887898 https://www.amazon.com/Lean-Startup-Entrepreneurs-Continuous... - Amy Hoy's blog: https://stackingthebricks.com/ https://stackingthebricks.com/ - working in the domain you are interested in for a year. Go be a realtor. Go work in a lawncare business. etc. etc. - read Patrick's advice about how he found customers for Appointment reminder: https://www.kalzumeus.com/2010/05/14/unveiling-my-second-product-demo-included/ https://www.kalzumeus.com/2010/05/14/unveiling-my-second-pro... edit: added link to Patrick's piece