I enjoy many delicious beverages in my hydro flask depending on my location :)
If I am in bikram class the only option for my hydro is H2O without it I would meet my demise. If I am poolside there is a chance (a pretty big on if you know me) that my hydro is filled with ice cold corona with lot of lines floating around :)
At work my hydro hauls different fluids based on the time of day. AM hot coffee, mid day iced tea, and afternoon on a run day water.
My favorite is the fact that no matter whats inside no one knows but you !