AvatarAlexander Ziegler33-year-old mom makes $40,000 a month in passive income—and lives on a sailboat: How I work 'just 2 hours a day'verified_publisherCNBC - Michelle Schroeder-Gardner, ContributorIn 2011, I started a personal finance blog, Making Sense of Cents, to track my journey to becoming debt-free — and it took off fast. Within a few …