Hmmm... I've heard a lot about Yerba Mate... including that back in the day rich people in South America would hire people just to make it all day long. That's good enough for me to give it a try!
Yerba mate is a drink native to South America, and has been enjoyed for centuries. It's delicious, to say the least, but also has extra healthful properties. It contains alkaloids in the same family as caffeine, so you get a completely natural boost - yet it is much gentler on your stomach.