I read and re-read Getting Things Done a couple of times before trying out a few thing.
The first thing I did was to junk all of my Outlook Rules. Now, I know this sounds scary to some people, but this is my personal e-mail which doesn't generate as much traffic as my work e-mail does. To show you how screwed up my e-mail is, I had e-mails that needed some action taken on them from two years ago at the bottom of my Inbox screen! Shameful!
I created "!Actionable" and "!Waiting On" and proceeded to go through each e-mail, using David's methods to determine if I needed time to finish the action required, could do it immediately, or was it just something that needed filing such as a receipt.
After I did all that, I had cut my e-mails down by half. Then I set aside an hour to go through my actionable items and did them all. My Inbox is empty. Now, I don't use rules. I let everything go to Inbox, I delete what I'm not going to read, do what can be done immediately and send the rest to "!Actionable" until my set aside action time.
I also just received my leather Inbox from Levenger. I figure if I'm going to do the Inbox thing, it should be one that is sturdier and looks better than the black plastic ones from Staples. I've had it for a week and it's been working quite well. It's like what Julie Morgenstern says about things having a home. Stuff that needs to be dealt with now has a home and it's getting done. I love it.
Next step, the Circa binder.