Originally Posted by adam97202
This is why some people run task manager software -- to periodically kill the processes that come up whether you want them or not.
You're right in the sense that people do do that. However, this is not actually advisable. At least the stock apps mentioned by the OP (and the vast majority of apps overall) will do absolutely no harm sitting in the background.
I used to be paranoid about this myself, but am no longer. The simple but effective proof: my wife uses an identical V with identical software and very similar usage patterns. The major difference between our phones: I'd always force-stop apps no longer needed; she doesn't even know what »force-stopping« means. (She even leaves Skype running constantly.)
After a few weeks of this it became obvious: there is no notable difference in battery use between her phone and mine. Nada.
Bottom line: unless you notice specific bad behavior from a buggy app, stay away from task killers and don't worry about force-closing.