I haven't had diet coke since sometime in earlier August! I decided to stop drinking diet coke after reading about the shaky FDA evaluation of aspartame, and after my own realization that I think it's very addictive. I was drinking 4-5 diet cokes a day, sometimes much more. Since going cold turkey, it hasn't been much of a problem. I drink a lot more tea and water, I focus on getting more sleep, and occasionally I'll have a regular coke when I'm at a gathering etc. It hasn't been too bad. I was so trained to pop a diet coke when I began studying, the hardest part was getting out of the routine. No more diet coke for me!