I sort of remember the caffienated water fad but my guzzle of choice back then was Black/Navy Rum. By 92 I had returned back to College as a retread and the first thing I did, as a conscious choice, was to go teetotal durinthe semesters. I still got back with the program during the breaks and the holidays but 100% sobriety otherwise reigned during the school year. Found that I stayed sharper and more alert during the lectures and seminars and information tended to stay in memory longer. As related elsewhere, booze and the meds I am now on do not mix so, as my heart health is more important to me that having a beer, alcohol and I got an uncontested divorce.
I still like caffiene and am a lifer C-cola drinker, original/classic/regular. I can and do like to mix in a can of that caffiene/cola mix with my regular cup of mud but, the yuppie/preppie/neo-trendie variants that the marketers keep trying to foist off on consumers can go to the sewage plant. BLEAH!!!
Nick