Outlook isn't all that complicated to use once you figure it, but trying to explain how to do something in Outlook often takes longer than just showing how to do it.
Many of these tutorials area also available on Slipstickcom's YouTube channel.

Adjusting Outlook's Zoom Setting in Email
New to Outlook 365: Remember Zoom Preferences. If the fonts in incoming messages are tiny (or huge), you may have a Zoom problems. I'll show you how to fix it. If you don't have an Office 365 subscription, I have a macro that will set the zoom level for you.

How to move IMAP data files
How to move an Outlook pst file used by an IMAP account or the ost file used by Outlook 2013 IMAP and EAS accounts. . Instructions include steps to move the pst or use the ForcePSTPath registry key.

Online Services in Outlook: Gmail, Yahoo, iCloud, AOL, GoDaddy
How to configure email accounts in Outlook, including Gmail, Hotmail, Godaddy, and Yahoo email. We have a list utilities that work with some web-based email services.

View a Two Week Calendar
You can select 2 or 3 weeks in the navigation calendars and view those weeks in a monthly-style grid. This trick works on all versions of Outlook. To change the number of weeks in the calendar view: Start with any Day/Week/Month view Drag the mouse over the dates in the navigation calendar to select up
Add Holidays to Second Outlook Calendar
As many users have discovered, Outlook's Options > Calendar Options > Add Holidays only adds the holidays to the default Microsoft Outlook calendar. Many users wonder how they'll get the Holidays on the other calendar. It's easy - add the holidays to the default calendar then move or copy them to the other calendar. Outlook

Open Hyperlinks in an Outlook Email Message
Use an Outlook macro to open every hyperlink in the selected email message. A version of the macro will open hyperlinks in every message in the selected folder.

Daylight Saving Time Calendar Display Bugs
When you the week starts on the Sunday Daylight time starts, appointments may appear at the wrong time in the week view.

Sync LinkedIn Contacts with Outlook desktop
In the People section of Outlook.com, I linked my Gmail, Twitter and LinkedIn contacts. I do not store any Outlook-only Contacts there, they are all linked. I'm syncing to Outlook but none of these linked People are syncing across.

How to Open Outlook Templates and Files using Toolbar Buttons
How to create a toolbar button in Outlook 2007 or Outlook 2010 to open templates and files and disable the security warning dialog that displays before the template or files opens.

How to Show the Sender’s Email Address and Reply Time in Outlook
How to show the sender’s e-mail address and other fields in a column in message list view. Many Extended MAPI properties are added to messages when they are committed to Outlook message store or the Exchange mailbox but Outlook doesn't have a built in way to expose the value. You can view them using a custom configuration form that exposes the value in a custom field.

Outlook Categories, Flags, and IMAP Accounts
Categories and flags are not available in all of my folders in Microsoft Outlook. I can use categories and flags on mail in my POP3 account but categories are not available in my IMAP account and flags are limited to one flag, no reminder. Why? The IMAP protocol doesn't support the Category and Flag properties

Duplicate Remover Tools
While you can remove duplicates by hand, the tools on this page make it easier when there are a lot of duplicates. Although some of these tools work only with the mail folders, many will work on any Outlook folder that contains duplicates. Featured Products ReliefJet EssentialsUse ReliefJet Essentials for Microsoft Outlook to remove, mark