Series 60 tips

Symbian's still supposedly got the largest market share of any smartphone operating system in the world, but just because it hasn't (yet) made a big splash in the American market doesn't mean there's not a wealth of helpful tips 'n' tricks to make the most of that Nokia (or Samsung, or Siemens, etc.). So let's see your hand, what have you been doing to make the most of that Series 60 smartphone of yours?