Outlook always uses the My Documents folder as its initial Look in location when you save or send attachments. While utilities exist that can change the location, the changes apply to all programs that use the My Documents folder.
Instead of browsing to the folders you use often, add it to the Places bar (Office 2000 and up) and the folder is just one click away.
Browse to the folder you want to add to the bar and select it, but don't open it. Select the Tools menu and Add to My Places.
From more information on using the Places bar in Office 2000, 2002, 2003 and Windows ME and up, see Customize Office Places Bar
Published August 27, 2003. Last updated on July 18, 2014.