Even though I’ve been a Mac person since 1986, as well as a UNIX programmer and sysadmin, there’s always something new to learn. Like this tip from the Apple web site. I was wondering how to click on a file on the desktop in OS X and then print it (printing used to be on the Finder’s File menu). Now I know. See Apple – Pro – Tip of the Week – Printing from the Desktop (Without a Desktop Printer).
Also has the tip on setting up a drag-and-drop desktop printer if you need one of those (they can go in the dock too.)