I love this, and did something similar.<p>If you haven&#x27;t thought of it already, some estimations are probably worth considering - electricity and water can be more or less stable, and you might benefit from taking those baseline costs out of your calculation.<p>Also, it might be useful to add metadata in the form of tags or tag-groups in your spreadsheet; this will give you a bigger&#x2F;more nuanced dataset if&#x2F;when you have a hankering to analyze your behavior.<p>Less usefully, it would be cool if it <i>looked</i> like Civ.