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Re:Talismans of Productivity: Or give up coffee. by nickluft on Thursday January 13, 2011 @09:18AM (#2099812)
Thanks for sharing.

But be aware that black tea and green tea often have the same caffeine content. The trick is to make your tea weak.

Re:Talismans of Productivity: Or give up coffee. by nickluft on Thursday January 13, 2011 @09:30AM (#2099848)
Some stats comparing caffeine content in tea.

http://www.stashtea.com/caffeine+and+tea.aspx