So this friend of mine from the islands got me drinking this stuff from South America called Yerba Mate....
I have had a few different kinds over the years in neo tea shoppes etc but never this real 100% kick ass stuff twigs and all from the rainforest....
So you gotta drink it out of this gourd thing - which is kinda strange for some....
I have one of these...

but some more common 12-15$ gourds look like...

Anyway you pour a ton of this yerba mate stuff into the gourd
http://en.wikipedia.org/wiki/Yerba_matefollowed by some cold water to make the herbs and twigs etc swll - then you pour in some hot but not boiling water....you stick that bombilla things which is basically a silver straw with a cage on the end to filter out the twigs and such into the gourd and drink the mate which ends up tasting like dark bitter green tea coffee - the kind I have tastes as strong as expresso....
Anyway - I cant even explain how different I feel - I went from a $7 redbull habit to a $8 matte habit and its a better caffeine boost, I get the nutrients of a multi vitamin and just about every aspect of my health feels improved.
I highly recommend trying it - !
Not sure how long till I get burned out - the boost is actually far from the only reason I like redbull (AKA the champaign of energy drinks)