In 2021, I built enough income streams to quit my $98,500-per-year engineering job and work on my businesses full-time. Here are three businesses you can start today for $50 or less:1. Cost to start: $50 Patreon allows you to build and sell memberships by providing exclusive access to your work. Every month, subscribers pay a fee to communicate directly with me and learn about top-selling products in different categories. You only pay to use the service once subscribers pay to join your group.

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