#17 in the spreadsheet is "How much do charities differ in impact?"
I would love to see an actual distribution of charity cost-effectiveness. As far as I know, that doesn't exist. Most folks rely on Ord (2013) which is the distribution of health interventions, but it says nothing about where charities actually do work.
I would like to read more about the ways in which we can promote effective giving without coming across as too pushy.