I've been many things in my life: Auto Mechanic, Refrigeration Tech., Electronics Tech., Computer Systems Administrator and an Inventor. I have several degrees in technical fields and I've built, repaired and created a lot of different things in my life.
There's almost nothing I can't fix and I'm always improving things I work on. For example, I had a 1995 Toyota Corolla that got 46-48mpg Hwy, 32-35mpg City and it wasn't a hybrid. That's just 1 example of the things I like to do.