Outlook proposes next shortcut keys for easy and quickly work with Calendar:
If your Microsoft Exchange account has strict size limits, it fills very quickly by replies and forwards of emails with attachments. When your Outlook mailbox fills up, you cannot receive new emails without removing old ones. To prevent your inbox from filling up and still keep the conversation's history, you can move old items to a separate Outlook Data File (an archive.pst). You can archive emails manually or use the AutoArchive feature in Outlook that moves old entities to an archive automatically. You can customize the AutoArchive schedule and behavior for a more comfortable Outlook experience.
Creating custom menus in Outlook is a funny feature you can use to create groups of the options that you use most often, and then plug them into the menu you name and use yourself.
If you want to construct a more complicated distribution list, with some recipients on the To field, some recipients on the Cc field, and yet more recipients on the Bcc field, you have to use a message template where you explicitly assign recipients to each field.
In some situation you may want to send your vCard in every message. This lets recipients enter the information in their address book quickly and without errors.
By default, Outlook groups your emails by conversations. A conversation is a thread of messages with the same subject. However, if you need to find relevant notes somewhere in the last week's emails or an email from a particular person, navigating emails grouped by conversations takes a lot of time, and changing default grouping settings helps to locate the information much faster.
Any of Outlook's default views can be modified to suit your needs. You can customize the fields displayed, sorting, grouping, filtering, fonts, and other formatting options.
Outlook, like other Office applications, supports AutoCorrect - a feature that allows Outlook to correct common spelling and typing errors and to replace characters with symbols. You also can use AutoCorrect as a shortcut, which means you can type a small string of characters and have those characters replaced by a longer string.
Like the Inbox and other message views, the Calendar view also has a Reading Pane that lets you preview appointments and other items in your schedule without opening them.
Outlook uses two features to resolve and complete names entered into email messages: AutoComplete and AutoResolution.