web stats analysis program
Every day, I spend about an hour taking figures from Google Webmaster Search Analytics and adding them to a spreadsheet I manage that does some calculations and then highlights anything interesting in the data.
I got tired of the drudgery of it, so spent most of the day today building something to cut that down to just a few seconds. Basically, I just open up the new stats thing, upload a CSV file into it, and it does all the hard work itself.
And then I stuck the whole thing up on GitHub: here you go