5 Tips to Empty your  Outlook Inbox and Keep It Near Empty Every Day
  Boy, does this take the tension off your day, and  keep things from dropping through the cracks! These tips will be a review for  dedicated MYN and 1MTD users, but if you are just getting started, read on.
  Tip 1. Convert E-mails to  Tasks
    The reason your Inbox is so hard to empty is that you are  storing uncompleted action items in there and they lock up your Inbox. Convert  those instead to Windows Outlook tasks and you can manage and complete them much easier—and  instantly get them out of the Inbox. To do that, just drag the e-mail to the  Tasks icon or label at the bottom of the Outlook window. 
    

 
Tip 2. Segment  Actions  into 3 Urgency Zones
To gain instant control of uncompleted actions, segment  those Outlook tasks into 3 Urgency Zones in Outlook’s To-Do Bar, mapping them to  the 3 Outlook task priorities: 
  - Critical Now: absolutely must do today (High  priority). 
- Opportunity Now: due in 1 to 10 days (Normal  priority).
- Over-the-Horizon: due beyond 10 days (Low  priority)
Both 1MTD  and MYN show you how to display these in the To-Do Bar. In 1MTD you simply arrange  the To-Do Bar by Importance (one-click to do that).
 
Tip 3. Save Mail to a Single  Folder
Storing mail in 40 or 400 separate folders is extremely slow. No wonder you never file! Instead  drag all mail into one  single folder and use Outlook Search more often—using advanced  tools in the Search Ribbon makes that practical.
 
Tip 4. Use Categories Instead
If you must save e-mail by topic name, use  Outlook Categories instead, all within that one folder. You can then group  by category name when visually searching. Also, Outlook  rules work great to auto-assign categories to e-mails, because they can stay in your  Inbox till you are done acting on them.
 
Tip 5. Restrict Use of Flags
Stop using Outlook flags on e-mail so much because they clog  up the task list with fake tasks. I recommend you use flags only  to mark deferred replies (and then remove the flag after the reply). To  mark merely important mail, use  Outlook Categories instead and consider using the Quick  Click category.
 
There is Hope!
With these tips, you can empty your inbox and keep it near  empty. In fact, if you’ve currently got thousands of e-mails in your Inbox, I  even have a way—using these tips—to empty  it in an hour or two. So there is hope!