With the release of Office 2013 and it's emphasis on SkyDrive storage, I've had several people ask about moving their pst file to SkyDrive, DropBox and similar services.
How to configure an Outlook.com email account in Outlook. You can use POP3, Outlook Connector, or EAS (Outlook 2013).
How to use VBA to create a search folder for messages sent to and from the sender of the selected message. VBA code sample included.
Outlook 2013's Reading Pane Compose lets you compose replies and forwards in the reading pane. To always have the Reply and Forward buttons open a new window, edit the registry.