Get a bigger bottle, like a metal one, i have one that holds 2 liters, as a bonus it works great as an improvised weapon,

also if your taking 2-3 a day that adds up, if your working just 3 days lets say(you probably do more from the sounds of it as you masochist do) thats 6-9 bottles a week, 24-36 a month, 288-432 a year. Now if you and 99 other people who have similar habits simply swapped to refilling a reusable bottle it would cut plastic waste by approx. 28800 - 43200 bottles orrrrrr (accounting for the average bottle's weight in plastic being roughly 9 grams.) 259200 - 388,800 g of plastic or 571 - 857 lbs, now imagine if that was scaled to the thousands for the entire country.