Post page w/o link

Hi! I’ve just migrated one clients website from Drupal CMS to WordPress. The website is not a blog, just a static website. WordPress fits very well for this as the newest version of Drupal (6.x compared to 5.x) works like shit.

I’m just having one problem;
Sometimes I want to post a page without having the link to go into the site menu, so I can link to it separately. How is this possible? Have searched on Google without results.