Busy Multitask bar... I want to quit not to freeze!

Question

On iOS4 when quitting an app by pressing home button, this app is _automatically added_ to the multitask bar.
If you use numerous apps, like I do, your multitask bar becomes quickly very busy.
But *I want my iPhone clean and sharp*. With only the real needed "multitaskable apps" in this bar.
There, I need to "long press" each app and "delete" it from the task bar...
Wow multitasking is becoming very painful and not user friendly!
How can I quit, but really quit, an app without being obliged to manually kill it in the multitask bar?
Thanks,

Answer 1

You don't have to tell the app anything. If the app has multitasking capabilities, they will automatically come into play once you switch out of the app or into another one using the fast-switch bar.
Speaking of which, here's what I think of it:
The bar puts the app most recently used in the first position (left side). After several apps, the apps closest to the front will be those most recently used. In theory, this means that the apps you use most often will be more easily accessible. For example, if you use the notes app once a month, then it doesn't matter if it's at the end of a list of 20 apps, because you can just go to the home screen to open it. On the other hand, if you use Mail 5 times a day, it will be more readily available.
I think some people are trying to view almost as a home screen replacement, but it's not. It's just there to make getting to recently used apps more easily.
Also, you don't have to use the bar when using multitasking. If an app has fast-app switching enabled (which means that it will return to the exact place where it was when you left it) then it doesn't matter how you open it (spotlight, fast-switch bar, homescreen) it will still be where you left it.