Hey everyone I'm a long time member and have never come across any exploits myself. But I figured this one out myself and I haven't seen it on the site before so I thought I'd share it. =)
When in arena or even in a BG, shaman have a lot of trouble with people just forgetting whichever totem they want and killing it. Well here is what you can do:
Earth and fire totems drop in front of you and Water and Air drop behind of you. You go up to a wall and face the wall, you drop earth and fire. You turn and have your back to the wall and drop water and air.
BAM! All of your totems are on top of each other and it is hard for anyone without a target totem macro to kill the certain totem they want. Example: tremor totem or Windfury totem for cleave team.
I hope this can help the small amount of shaman that arenaI know it helps me a ton!
EDIT:
Here's a screenshot of what it does
[IMGL]http://i96.photobucket.com/albums/l168/c_marx/WoWScrnShot_080708_081932.jpg[/IMGL]