You can put a dollar number on the losses Spencer Cornelia took on his first two long-distance flips... but it's hard to quantify the value of the lessons he learned and is now passing on to you.

We noticed Spencer...

Vivian Tu, AKA “Your Rich BFF,” is the internet’s expert on money and personal finance. She was doing schoolyard trades before she worked on Wall Street, and now, as the host of Networth and Chill, she talks about the...