If you work in Outlook most of the day, you may need to navigate from the Mail view to the Calendar, then to Contacts, and then back to Mail. Juggling those aspects of Outlook can be awkward.
Instead, try this simple tip to open Mail, Calendar, Contacts & Tasks in separate windows, it works in Outlook 2003, 2007, and 2010:
When you receive an email message that has information about a meeting or a training session, you can easily add it to your Outlook Calendar by simply dragging & dropping it. From the view of the folder where the message is (most likely your Inbox), click on the little envelope icon, and drag it to the Calendar icon.
Bad news: the calendar in Outlook 2007 doesn't display holidays, unlike previous versions of Outlook. Good news: adding holidays to your calendar is easy! Just follow these steps...
Open Outlook
Click Tools on the menu bar
In the Tools dropdown menu, click Options
In the Options dialog box, click the Calendar Options button
In the Calendar Options dialog box, click the Add Holidays button
In the Add Holidays to Calendar dialog box, click the box next to United States, and then click the OK button
The Import Holidays window will open
When a "The Holidas were added to your Calendar" confirmation dialog box pops up, click the OK button to close it
Click the OK button to close the Calendar Options dialog box
Click the OK button to close the Options dialog box
Did you know that your calendar in Outlook 2007 is customizable? Even though the default view might be Week, find out how you can make it Day or Month to suit your needs. And find out how to change it from a 7-day week view to a 5-day work-week view. You can also show more or less detail in your calendar. These and more custom settings are demonstrated in this 4½ minute video http://office.microsoft.com/en-us/outlook/HA102392311033.aspx.