Hey, couldnt find anything with search, if it is already posted then delete this.
So, if you are a resto shaman you can get some more spellpower, for a bossfight or whatever.
First, get dualspec, specc into elemental and restoration (resto is your main-talent). Then get the glyph 'Totem of the Wrath'.
Insert the glyph in your ele specc and place totem of the wrath, now switch speccs. voila - u got like ~100 spellpower more
(The problem is, it is just for 5 minutes - but should be enough for a little boost)
Have fun with that!