Do you end up typing the same text over and over for several different email messages? In Outlook you can create text blocks, store them on your local computer, and access them whenever needed.
Reusable Text Blocks are meant to make it easy to insert things that are regularly used in emails, such as the department name and contact information, or any information that needs to be shared repeatedly. To do this, you can create reusable building blocks and access them from the Insert menu, then Quick Parts on the ribbon in Outlook 2007 and 2010. The link below goes into greater detail about how to do this:
Reusable Text Blocks