What program to use?

I would love to be able to organize all my "stuff" in one place on my computer. This is why I loved the idea behing Evernote so much. However, when I got it a few years ago, it felt clunky, not easy to use. I set it aside. They have made some nice updates, I have found recently. When I was looking online to find more efficient ways to use Evernote, I came across SpringPad. I found its demo video intriguing. My husband asked about my search and, after I explained, he suggested Trello. I am looking over all three, and their pros and cons. Any ideas?