I know I'm late to this conversation from a couple of days back, but people were talking churning spreadsheets. I always like to mention the spreadsheet I use which came from a template posted by garretg on reddit. Spreadsheets tend to intimidate people and this one is really easy to use. And it tracks (and calculates) a lot of useful information.
I teach college Excel courses and develop prep materials for Excel certification exams, but I even I just use this one instead spending time to make something better.