OpenSCAD
At a mentor's recommendation, I've started learning SCAD for 3D printing.
Holy smokes I'm drunk with power.
Instead of manipulating the object with your cursor you program them. So I've taken off at full speed with it. I've started designing stuff to organize our workspaces. I plan on making home decor. Basically, if I can't find it online, I think I could make a reasonable go at designing it myself now.