Can anyone tell me if it is possible to have a menu item that isn't linked to a page ie.

home (page)
PRODUCTS (section header not a page)
product 1 (page)
product 2 (page)
product 3 (page)
SERVICES (section header not a page)
service 1 (page)
service 2 (page)
service 3 (page)

as you see above I want section headers in the menu structure that are not pages and are not linked to anything. At the moment I have to put a page for the section which means I have a page that i dont really want or need. Any help would be great