Again, whatever is best for you, test your capacity for swift fluid intake with tap water from whatever recepticles you have. It varies.
Personally, l struggle to drink quickly so I'm going to pour 1ml each into two hundred separate thimbles, and drink them through a straw. Thimbles are available on Amazon. I'll be buying them separately and not in bulk, otherwise l risk drawing suspicion and could end up being put in a psych ward by the FBI; obviously this takes a while but l prefer to get my preparation done right. Obviously I'd then have to hide my thimbles and hope relatives don't find them, but that's a risk I'm willing to take. Straws are available free with a carton of Kia-Ora, I've been buying one every day now for 93 days, keeping the straw and then discarding the carton, nobody suspects a thing. In 107 days I'll have all my straws and will then be about ready to rock, weather permitting.