I continue to be amazed that a program like Trello exists for free. It’s a top quality outliner, brainstormer, and documenter — and it can accommodate multi-user participation simultaneously, even if the participants are on opposite ends of the globe. It’s encrypted, secure, and is being developed by a highly respected team of top-notch developers. And like I said — it’s FREE. There are also great apps for one’s iPad or SmartPhone. Try it.