As messages gather in your in-box, your Outlook data file can grow to extremely large sizes.

This eats up system resources and increases the time Outlook takes to load. If you don't want to delete messages, consider archiving them.

One way to archive is to use the File | Archive command, fill in the options in the Archive dialog box, and choose OK.

Another easy way is to create a second data file.

From the main Outlook window, select File | Open | Outlook Data File if you already have a file to archive to, or File | New | Outlook Data File if you need to create one.

If you're using Outlook 2003, you'll also see a dialog box asking you to choose whether to use the new Outlook format or the format used by Outlook 97 through 2002.)

Once the second file is open, drag and drop the folders or files you want to archive to the second file, and, finally, close the file.

Yet another alternative is to use Outlook's auto-archive feature. To set automatic archiving for any given folder, right-click on the folder, choose Properties and then the AutoArchive tab, and set the options to match your needs.