Getting Things Done is really about four things: capture, label, list, and do. Possibly the most complicated step is listing, because there’s just so much stuff, and organization doesn’t happen by itself. All the stuff needs to fit into lists, and it all needs to show up in the right place at the right time. Currently, I use Remember the Milk to list my stuff, or at least represent my stuff in lists. I’ve used other lists, and I’ve learned that one indispensable function is tagging (or labeling). Tags allow you to slice and dice your tasks many different ways with the option of view everything in one big list, if necessary.
Desktop-based solutions
GTD in Outlook - via Bill Kratz
Text File - (via 43folderswiki)
Web-based solutions
Remember the Milk - Getting Things Done with Remember the Milk (via Lifehacker)
Google Notebook - Getting Things Done with Google Notebook (via Lifehacker)
Crazy-big list of tools:
GTD Software Tools for PC and Mac (via Jeff Sandquist’s wiki)
What do you use to keep organized?
Lately I have fallen in love with Sandy: http://www.iwantsandy.com
I use many machines (desktops, laptops, pdas, tablets) every day. Having one simple system has changed me. I use it primarilly through email, but access via IM and SMS (via Twitter) is amazing. Nothing you couldn’t do in other programs, but Sandy makes it SO EASY that I can’t resist. My inbox is down to 3 items.