I'm still trying out my Nokia E61 and its ability to fully replace my trusted Time/System management book.
One thing that I found a bit cumbersome is the menu navigation with the joystick that I have to do when I want to use applications that are not on the active standby" screen. On the "E-Series blog, I found a nifty hint today solving that problem pretty much: every position on the main menu has its correspondig number key.
So, by strategically positioning the menu entries and using the number keys, you can quickly choose the folder or application you need without being reminded of Decathlon[1].
fn1. Is there a Competition Pro for the E61? ;-)