[JaxChris]

I believe what the general consensus is among the more educated Android users is that if you do use a Task Manager/Killer, put most of the small everyday stuff in the Ignore list and only use it to fully close large apps after you are done with them (Games, Google Earth, etc).

I noticed I was trying to keep my RAM usage high as well but then released I only really needed to use it after using an app with high resource usage. Most apps are only using 3MB of RAM. It's the ones gradually build up to 100MB of usage that you need to kill.