3) Give back

Kutcher comes from humble, blue-collar roots — his dad worked at a meat-packing plant and his mom was a school teacher. Because of that Midwestern upbringing, his philosophy on investing — and life in general — is to give back to those who need a helping hand.

"I'm very appreciative of the things I have," said Kutcher. "I'm always fighting for the little guy, no matter what, because I always feel like I am the little guy. If you're lucky enough to be doing well, it's incumbent upon you to help folks who are struggling to grab that first rung on the ladder to start their climb."