I gave up caffeine 8 years ago cold turkey when I realized I was using it to fuel mania. After stopping cold turkey once I never wanted to go through that again and I never wanted to abuse it like that again so aside from some occasional cheap chocolate (which has less than the good stuff) I haven't had caffeine in 8 years. It was a good decision for me but I had no self-control about it. I started Seroquel at the same time I stopped caffeine so there never was any question of using it to counter Seroquel. I did take Nuvigil/Provigil for a while though when I was working.