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Dave HI am quitting coffee. Caffeine makes me tired, irritable, dependant, lazy, disturbs my sleep, and an all around grumpy person.
I must say, thanks for lightening the past day of crushing headaches. Its been a joy reading this thread. 
On a side note, I suspect both you guys are also too addicted and dependant on too much coffee/caffeine. Contact me if you wish to talk about what I have learned.