One day I will blog about what org-mode has done for my life, but for now just accept my word: I have typed tens of thousands of words into each of EverNote, Tomboy, and TiddlyWiki. I attempted to use Remember the Milk, Google Tasks, and other todo apps for years. I also unsuccessfully struggled to recall information by bookmarking and tagging three thousand websites in delicious. Nothing worked and I was on the verge of giving up for sanity's sake and just emailing myself reminders and notes.
Then I discovered org-mode and took control. I can recall and store any information in seconds. Org mode can do absolutely everything. Ask and you shall learn.