http://tvtropes.org/pmwiki/pmwiki.php/Main/WarchildSeries
Amazing to me that anyone took the time to compile this. It's pretty funny in parts how they interpret things.
It is true, it's nigh impossible to write anything without falling into some kind of category or trope. It is a fun site! :)
Just read through this. Greatly enjoyed it... I love the tv tropes site. You can't have a good story without good tropes... everything is a trope at this point. You'd have to have them sitting around staring at watermelon for the entire series to avoid it- and, since I haven't read through the entire web site before, I can't tell you, that could be a trope, too.