This is a great question, and I too have been waiting for someone to jump into the market with some good skeletons and maybe some good Zombies too. The market is ripe!
It's always a great idea to visualize what a paint job is going to look like. For those of us who don't draw, you can use copies of the instructions and you can draw your graphics and ideas on there. Very cool.
Bill, you are right about that.
What I do end up doing is keeping a build journal, a little book where I jot ideas, paint formulas, reference pics, etc . . . during a build. I also keep track of names for builds that comes to my head.