What would be useful to me now is a tool to help order, visualize and prioritize tasks for a larger project. I'm organizing a fundraising campaign for the non-profit I work with, and there are lots of tasks and some dependencies.

I'm trying some Excel spreadsheet templates for starters - the ones linked at the end of that post seem useful. (Downloading didn't work in Firefox for some reason, but did in Chrome.) Unsure whether to go with Gantt or Critical Path but I'll try Critical Path first.

I'm curious to know what works for you. A clear and simple tool is what I need, not something that takes significant mental energy and organizations skills just to use it. Doesn't have to be a spreadsheet, but a spreadsheet is my initial preference as it should be easy, and OS-independent (maybe even doable in the cloud).

Guidance is appreciated.