Seen on a Linux newsgroup:

You know you are a geek when you use big-O to describe why you use virtual desktops with a direct keystroke for each desktop O(1) rather than one desktop and alt-tab to change windows O(n).

Personally, I’m an O(1) guy. It’s so much more efficient to have a quick key combination to hop between my ten desktops and do stuff than to poke around menus and windows…