When you're doing data processing or any project for that matter. It's good to define some standards on how you'll go about "processing" things for lack of a better word. I've worked on a lot of small projects over the years most never seeing release and I have found over time it's very important to have a well defined process.
So write documents on how to code, how you'd like your indentation to be done etc. This not only helps you remember where your project is but also helps others when they join in to help you on your project (and I forget what I am doing when I put something down all the time, RPGs included). Over time everyone will probably come to this conclusion so here's an early heads up to save you time.