I’m teaching an AC circuits class this semester, so I have to generate a lot of circuit diagrams. I've recently played around with #TeXLaTex #CircuiTikz. It turns out that Pierre Chatelier's #LatexIt is great for the task. I've created a custom preamble to import the package, and now I'm able to draw my circuits step-by-step in an almost WYSIWYG way. When I'm done, I can save the generated LaTeX code and put it into a Git repo.