Well, you actually can’t completely avoid it! But here is a way to make it a non-issue for your day to day use.
The most common complaint of S60 is the directory structure down to many levels, sometimes more than six. And one has to press the ‘back’ button several times to get to the idle screen. It’s not really a pain as it is made out to be.
S60 is a multi-tasking OS. Therefore several applications can run in the memory and it’s only limited to the total available RAM on the phone. Latest mobiles pack upto 70 mega bytes of RAM and that’s more than enough for several applications to run simultaneously.
Install Handy Taskman which will show all applications running on the mobile and also the list of recent apps. It can be invoked by long-pressing the Symbian Key or Home Key (recent E-Series mobiles have this in place of the Symbian Key).
So if you open a bunch of applications, just keep them running. Go back to the idle screen and make a call or whatever. All the apps are still running in the background!
You can kill an application from Handy Taskman and you can also start new application or recently closed applications from Handy Taskman.