Utility to give you a printable copy of your Trello Board, lists - cards - labels - desc - comments - votes.
This is helpful even when you just want to be able to scan quickly, without having to turn each card over.
You may safely use this for private/proprietary data as all processing is client side - you paste in the JSON exported from your Trello board
Try it out at http://connie-clark.github.io/print-trello/