Jot notes to yourself, and then create a URL, so you can retrieve the note, regardless of where you are. Share the URLs with your other selves, or with others.
From Brian Benzinger comes a comprehensive list of 50 websites that will help you write, take notes, and organize your life. Some real gems here, check them out. I used a couple of these plus a timeline tool to create an easy-to-update task-reporting tool