Why I decided to be rich and homeless.

> she doesn’t have typical living expenses, and she keeps her travel cheap by rooming with locals or friends.

So basically she lives off other people's "typical living expenses" like owning a couch for her to crash on?

Sure, that's a clever way to save money: have your friends pay rent for you!

She's not homeless, she just travels constantly and stays in other people's homes (via couchsurfing). She's not really "homeless" in the way you expected to read that title.