I do it all. Well, I think the better answer to this, is I take the things other people make, and use them to make things other people use. The company I work for sells cartesian mass modifiers, and rotary mass modification equipment, industrial droids, and a variety of other stuff. I take those things and turn them into factories. The factories make everything you see every day.
This is what I do. I don't make the things you use and see every day, I make the factories that make those things. Yeah, that's probably the most elegant way to put it.