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.
When you use an IMAP account in Outlook 2013, appointments and contacts are stored in the IMAP data file. Create a local pst file and move the appointments and contacts to the local data file.
How to configure Outlook 2013 IMAP accounts to get the full flag follow-up options (tomorrow, next week, etc.) and use a custom quick-step that saves email as task with text.
How to make the font used in Outlook 2013's folder list a little larger.
How to create additional Contact folders and enable then as Outlook Address Books.
How to end a recurring appointment or cancel future events in a recurring meeting and keep any exceptions (including notes in individual occurrences or appointments/meetings moved to different dates).
How to create a custom view to print or display the actual date a reminder is set for in Outlook.
We occasionally get complaints from people who are using a group by view on Contacts and they have two groups of "(none)", often when grouping by Company or Country (because they are common fields to group by), but grouping by almost any field can result in two different (none) groups. This can happen with contacts
The most annoying problem with multiple Exchange accounts in an Outlook 2010 profile is the ridiculous number of calendar and contact folders cluttering up the navigation pane. There are ways to deal with the extra folders.