I just posted a new poll on menu bar icons. More specifically, how many programs do you keep installed on the right side of the main menu, including Spotlight? Count only those things that provide separate functionality, not just a count of visible things. If you show the weekday and the time, for instance, that's one, not two. If you use MenuMeters to put your Quad core machine's CPU usage in the menu bar, those four bars are one function, not four. (But if you also show MenuMeters' disk, network, or memory features, each of those count as separate functions.)

I was quite surprised by the total on my machine -- usually 19, sometimes 20 or 21 depending on what I'm doing. (Due to a 20-question poll limit, all answers above 18 are lumped together.)