Try inkscape, that is the best free software to use. Go to youtube site and search these words: das41 software
That video gives a huge list of art softwares to check out, plus other info.
I use windows Paint.
I like fritzing, it is very easy to use and free!
fritzing.org/download/?
I know multi-sim works but I need to be able to play it all on a breadboard, but none of the programs let you move and scale the resistors freely. Are there any good programs to do quick drawings with that aren't too hard to learn?