Make about $40/mo on a couple iPhone apps (one paid, one free with a pay what you want in-app purchase). Mechanical engineer but taught myself iOS programming in my spare time for fun.
For those curious, the apps are "US Tax Receipt" (free) and "Candy Counter - The Candy Jar Estimator" ($0.99)
For those curious, the apps are "US Tax Receipt" (free) and "Candy Counter - The Candy Jar Estimator" ($0.99)