Entrepreneurs Julien and Kiersten Saunders are well on their way to achieving financial independence by growing their digital business, creating multiple revenue streams and putting the majority of their disposable income into low-cost index funds, where it can grow over time.

They're part of the FIRE (financial independence, retire early) movement, which embraces the concept of saving the majority of your income in your 20s or 30s so you can retire and have the freedom to do what you want to in your 30s and 40s.