^What spreadsheet do you recommend?
I sort of want to do this, and also don't as I know a ton of my money goes to stupid shit.
I just use MSExcel (or any generic spreadsheet). Download the .csv, import, sort (by retailer or expense amount), do some sums and cut and paste at will.
^Could be a solid option.
What is the catch? How can it be free?
They fund it by selling your data to the Black Helicopter people. (Not that I have anything against Black people or Helicopters)